torso
Information about torso
)
The human male torso
Anatomy
Major organs
Most critical organs are housed within the torso. In the upper chest, the heart and lungs are protected by the rib cage, and the abdomen contains the majority of organs responsible for digestion: the liver, which respectively produces bile necessary for digestion; the large and small intestines, which extract nutrients from food; the anus, from which fecal wastes are excreted; the rectum, which stores feces; the gallbladder, which stores and concentrates bile and produces chyme; the ureters, which passes urine to the bladder; the bladder, which stores urine; and the urethra, which excretes urine and passes sperm through the seminal vesicles. Finally, the pelvic region houses both the male and female reproductive organs.Major muscle groups
The torso also harbours many of the main muscle groups of the body, including the:Innervation
The organs and muscles etc. are innervated by various nerves, maninly orginating from thoracic vertebral segments. For instance, the cutaneous innervation is provided by:References
See also
Human anatomical features |
|---|
HEAD: Skull - Forehead – Eye – Ear – Nose – Mouth – Tongue – Teeth – Jaw – Face – Cheek – Chin
)
NECK: Throat - Larynx – Adam's apple
TORSO: Shoulders – Spine – Breast – Chest – Ribcage – Abdomen – Navel
LIMBS: Arm – Elbow – Forearm – Wrist – Hand – Finger (Thumb/Index/Middle/Ring/Little) – Leg – Lap – Thigh – Knee – Calf – Heel – Ankle – Foot – Toe (Hallux)
SKIN: Hair |
| Spine [ edit] |
| general structures: body of vertebra, vertebral arch (pedicle, lamina, vertebral notch), foramina (vertebral, intervertebral), processes (transverse, articular, spinous) cervical vertebrae: C1 (anterior arch, posterior arch, lateral mass), C2 (dens), C7, posterior tubercle, foramen transversarium thoracic vertebrae: costal facets (superior, inferior, transverse) lumbar vertebrae: accessory process, mammillary process sacrum/coccyx: pelvic surface (anterior sacral foramina, dorsal surface (posterior sacral foramina, median sacral crest, medial sacral crest, lateral sacral crest), lateral surface, base, sacral hiatus |
Muscles of torso | |
|---|---|
| BACK | splenius: (capitis - cervicis) - erector spinae (iliocostalis - longissimus - spinalis) - latissimus dorsi transversospinales: (semispinalis dorsi - semispinalis cervicis - semispinalis capitis - multifidus - rotatores) - interspinales - intertransversarii |
| SUBOCCIPITAL | rectus capitis posterior (major, minor) - obliquus capitis (inferior, superior) |
| CHEST | intercostales (external, internal, innermost) - subcostales - transversus thoracis - levatores costarum - serratus posterior (inferior, superior) - diaphragm |
| ABDOMEN | obliques (external, internal) - transversus abdominis - rectus abdominis - pyramidalis - cremaster - quadratus lumborum |
| PELVIS | levator ani (iliococcygeus, pubococcygeus, puborectalis) - coccygeus |
| PERINEUM | sphincter ani (externus, internus) - superficial perineal pouch (transversus perinei superficialis - bulbospongiosus - ischiocavernosus) - deep perineal pouch (transversus perinei profundus, sphincter urethrae membranaceae) |
Anatomy of torso, respiratory system: Lungs and related structures | |
|---|---|
| lungs |
right
left
lingula
apex
base
root
cardiac notch
cardiac impression
hilum
borders (anterior, posterior, inferior)
surfaces (costal, mediastinal, diaphragmatic)
fissures (oblique, horizontal)
|
| conducting zone | |
| respiratory zone | |
| pleurae | |
Arteries of torso - abdomen | |||||||
|---|---|---|---|---|---|---|---|
| ABDOMINAL AORTA: Anterior |
| ||||||
| ABDOMINAL AORTA: Posterior |
Visceral: middle suprarenal –
renal
(inferior suprarenal) –
testicular/ovarian Parietal: inferior phrenic (superior suprarenal) – lumbar – median sacral Terminal branches: common iliac | ||||||
| INTERNAL ILIAC: Anterior |
umbilical
(superior vesical,
to ductus deferens) –
inferior vesical –
middle rectal –
uterine
(azygos of the vagina) –
vaginal –
obturator
(anterior branch,
posterior branch) –
internal pudendal
(inferior rectal,
perineal,
artery of the urethral bulb,
urethral,
deep artery of the penis,
dorsal artery of the penis) –
inferior gluteal
(accompanying of ischiadic nerve,
crucial anastomosis)
| ||||||
| INTERNAL ILIAC: Posterior | |||||||
| EXTERNAL ILIAC | |||||||
Anatomy of torso (primarily): the spinal cord | |
|---|---|
| Spinal nerve | Dorsal (Root, Ganglion, Ramus) • Ventral (Root, Ramus) • Sympathetic trunk • rami communicantes (Gray, White) |
| Gray matter/Rexed laminae | Posterior horn (Column of Clarke, Substantia gelatinosa of Rolando, Nucleus proprius) • Lateral horn • Anterior horn • Central canal/Substantia gelatinosa centralis |
| White matter: somatic/ascending (blue) | |
| White matter: motor/descending (red) |
Lateral: Corticospinal (Lateral) • Ep (Rubrospinal, Olivospinal)
Anterior: Corticospinal (Anterior) • Ep (Vestibulospinal, Tectospinal, Reticulospinal)
|
| Layers | Epidural space • Dura mater • Subdural space • Arachnoid mater • Subarachnoid space • Pia mater |
| Other structures | Denticulate ligaments • Conus medullaris • Cauda equina • Filum terminale • Cervical enlargement • Lumbar enlargement • Anterior median fissure |
Lymphatics of torso | |
|---|---|
| Chest | Tracheobronchial - Right lymphatic duct - Thoracic duct (spans diaphragm) |
| Abdomen | Cisterna chyli - Lumbar trunk - Intestinal trunk - lumbar/paraaortic (Retroaortic, Lateral aortic, Preaortic, Inferior mesenteric) - iliac (Common, External, Internal) |
Anatomy of torso, digestive system: Gastrointestinal tract | |
|---|---|
| Upper GI: to stomach | Mouth • Pharynx (nasopharynx, oropharynx, hypopharynx) • Esophagus • Crop |
| Upper GI: stomach | rugae - gastric pits - cardia/gland - fundus/gland - pylorus/gland - pyloric antrum - greater curvature - lesser curvature |
| Lower GI: intestines | Small intestine (duodenum, jejunum, ileum) • Vermiform appendix • Ileocecal valve - Large intestine: Cecum • Colon (ascending colon, hepatic flexure, transverse colon, splenic flexure, descending colon, sigmoid colon) |
| Lower GI: after intestines | Rectum (Houston valve, rectal ampulla, pectinate line) • Anal canal (anal valves, anal sinuses, anal columns) - Anus: Sphincter ani internus muscle • Sphincter ani externus muscle |
| Lower GI: continuous | GALT: Peyer's patches • M cells - intestinal villus • crypts of Lieberkhn • circular folds • taenia coli • haustra • epiploic appendix |
Anatomy of torso, digestive system: Digestive glands | |
|---|---|
| Organs | Pancreas (Tail, Body, Head, Islets of Langerhans) • Gallbladder • Liver (Hepatocyte, Space of Disse, Kupffer cell, Liver sinusoid, Hepatic stellate cell, Hepatic lobule) |
| Ducts | Bile ducts: (Bile canaliculus, Common hepatic duct, Cystic duct, Common bile duct) • Pancreatic duct • Hepatopancreatic ampulla |
thorax is a division of an animal's body that lies between the head and the abdomen.
In mammals, the thorax is the region of the body formed by the sternum, the thoracic vertebrae and the ribs. It extends from the neck to the diaphragm, not including the upper limbs.
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In mammals, the thorax is the region of the body formed by the sternum, the thoracic vertebrae and the ribs. It extends from the neck to the diaphragm, not including the upper limbs.
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To comply with Wikipedia's this section of the article needs a complete rewrite.
Please discuss this issue on the talk page and read the layout guide to make sure the section will be inclusive of all essential details. This article has been tagged since September 2007.
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Please discuss this issue on the talk page and read the layout guide to make sure the section will be inclusive of all essential details. This article has been tagged since September 2007.
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organ (Latin: organum, "instrument, tool") is a group of tissues that perform a specific function or group of functions. Usually there is a main tissue and sporadic tissues. The main tissue is the one that is unique for the specific organ.
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heart is a muscular organ responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in the annelids, mollusks, and arthropods.
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lungs flank the heart and great vessels in the chest cavity.[1]]]
The lung is the essential respiration organ in air-breathing vertebrates, the most primitive being the lungfish.
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The lung is the essential respiration organ in air-breathing vertebrates, the most primitive being the lungfish.
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The human rib cage is a part of the human skeleton within the thoracic area. A typical human ribcage consists of 24 ribs, 12 on each side of the thoracic cavity, the sternum and the 12 thoracic vertebrae in both males and females.
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Digestion is the process of metabolism whereby a biological entity processes a substance in order to chemically and mechanically convert the substance for the body to use.
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Overview
Digestion occurs at the multicellular, cellular, and sub-cellular levels, usually in animals...... Click the link for more information.
liver is an organ present in vertebrates and some other animals. It plays a major role in metabolism and has a number of functions in the body, including glycogen storage, decomposition of red blood cells, plasma protein synthesis, and detoxification.
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Bile (or gall) is a bitter, yellow or green alkaline fluid secreted by hepatocytes from the liver of most vertebrates. In many species, it is stored in the gallbladder between meals and upon eating is discharged into the duodenum
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The large intestine, an organ which is now more commonly referred to by its Greek name, the colon, is the last part of the digestive system: the final stage of the alimentary canal in vertebrate animals.
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In biology the small intestine is the part of the gastrointestinal tract (gut) between the stomach and the large intestine and includes the duodenum, jejunum, and ileum. It is where the vast majority of digestion takes place.
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anus (from Latin ānus "ring, anus") is the external opening of the rectum. Closure is controlled by sphincter muscles. Feces are expelled from the body through the anus during the act of defecation, which is the primary function of the anus.
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Human feces (also faeces — see spelling differences), also known as stools, vary significantly in appearance, depending on the state of the whole digestive system, influenced by diet and health. Normally they are semisolid, with mucus coating.
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The rectum (from the Latin rectum intestinum, meaning straight intestine) is the final straight portion of the large intestine in some mammals, and the gut in others, terminating in the anus. The human rectum is about 12 cm long.
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Feces, faeces, or fæces (see spelling differences) is a waste product from an animal's digestive tract expelled through the anus (or cloaca) during defecation. The word faeces is the plural of the Latin word fæx meaning "dregs".
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The gallbladder (or cholecyst, sometimes gall bladder) is a pear-shaped organ that stores about 50 ml of bile (or "gall") until the body needs it for digestion.
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Chyme, also known as Chymus is the liquid substance found in the stomach before passing through the pyloric valve and entering the duodenum. It results from the mechanical and chemical breakdown of a bolus and consists of partially digested food, water, hydrochloric acid,
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In human anatomy, the ureters are the ducts that carry urine from the kidneys to the urinary bladder, passing anterior to the psoas major. The ureters are muscular tubes that can propel urine along by the motions of peristalsis. In the adult, the ureters are usually 25-30cm long.
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Urine is a liquid produced by animals through the kidney, and is collected in the bladder and excreted through the urethra.
Urine formation helps to maintain the balance of minerals and other substances in the body.
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Urine formation helps to maintain the balance of minerals and other substances in the body.
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In anatomy, the urinary bladder is a hollow, muscular, and distensible (or elastic) organ that sits on the pelvic floor in mammals. It is the organ that collects urine excreted by the kidneys prior to disposal by urination.
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In anatomy, the urethra is a tube which connects the urinary bladder to the outside of the body. The urethra has an excretory function in both genders to pass urine to the outside, and also a reproductive function in the male, as a passage for sperm.
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sperm is derived from the word spermos (meaning "seed") and refers to the male reproductive cells. Sperm cells are the smaller gametes involved in fertilization.
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The seminal vesicles are a pair of simple tubular glands posteroinferior to the urinary bladder of males.
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Anatomy
They are approximately 5 cm in length, though the full length of the gland is approximately 10 cm and curled up inside of the structure...... Click the link for more information.
pelvis (pl. pelvises or pelves) is the bony structure located at the base of the spine (properly known as the caudal end). The pelvis incorporates the socket portion of the hip joint for each leg (in bipeds) or hind leg (in quadrupeds).
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A sex organ, or primary sexual characteristic, as narrowly defined, is any of those anatomical parts of the body which are involved in sexual reproduction and constitute the reproductive system in a complex organism; namely:
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Pectoral muscles can refer to:
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- Pectoralis major muscle
- Pectoralis minor muscle
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human abdomen (from the Latin word meaning "belly") is the part of the body between the pelvis and the thorax. Anatomically, the abdomen stretches from the thorax at the thoracic diaphragm to the pelvis at the pelvic brim.
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The latissimus dorsi (plural: latissimi dorsi) is the large, flat, dorso-lateral muscle on the trunk, posterior to the arm, and partly covered by the spinotrapezius on its median dorsal region.
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thorax is a division of an animal's body that lies between the head and the abdomen.
In mammals, the thorax is the region of the body formed by the sternum, the thoracic vertebrae and the ribs. It extends from the neck to the diaphragm, not including the upper limbs.
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In mammals, the thorax is the region of the body formed by the sternum, the thoracic vertebrae and the ribs. It extends from the neck to the diaphragm, not including the upper limbs.
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Cutaneous innervation refers to the area of the skin which is supplied by a specific nerve, i.e. a cutaneous nerve.
The idea is similar to dermatomes. However, dermatomes only specify the area served by a spinal nerve.
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The idea is similar to dermatomes. However, dermatomes only specify the area served by a spinal nerve.
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