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ALPHABETICAL INDEX
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

b
TERMS AND DEFINITIONS
LINKS TO THE VIRTUAL HUMAN BODY
back
Hind part of the thorax.

back of hand
Outer side of the hand, corresponding to the metacarpus.

basilar artery
Single artery resulting from the union of two vertebral arteries, especially rrigating the cerebellum; they then divide to form the two posterior cerebral arteries.

basilic vein
Vein of the inner face of the arm, joining the brachial veins to form the axillary vein.

beard
All the hairs covering the lower part of the face of men beginning in puberty; their abundance and appearance vary by individual.

biceps of arm
Muscle having two heads (short and long) connecting the scapula to the radial tuberosity and allowing flexion of the forearm.

biceps of thigh
Muscle formed of two heads, located behind the thigh and connecting the femur and ischium to the fibula; it assists in bending the leg.

blood vessel
Channel through which blood circulates, mainly the arteries, veins and capillaries.

body of fibula
Central part (or diaphysis) of the fibula.

body of humerus
Central part (or diaphysis) of the humerus, between the two epiphyses.

body of mandible
Anterior horizontal part of the mandible.

body of radius
Central part (or diaphysis) of the radius, between the two epiphyses.

body of sternum
Wide part of the sternum, between the manubrium and the xiphoid process.

body of stomach
Main part of the stomach contained between the fundus and pylorus.

body of ulna
Central part (or diaphysis) of the ulna, between the two epiphyses.

bones of foot
All 26 bones forming the skeleton of the foot.

bones of hand
Group of 27 bones making up the skeleton of the hand.

brachial artery
Artery running along the inner side of the arm, extending the axillary artery.

brachial muscle
Powerful muscle connecting the anterior side of the humerus to the ulna; it allows flexion of the forearm.

brachial plexus
Network of nerves formed by the last four cervical nerves and the first thoracic nerve; its branches ensure the motor skills and responsiveness of the upper limbs.

brachial veins
Veins of the arm, joining the basilic vein to form the axillary vein.

brachiocephalic trunk
Artery arising from the arch of the aorta, dividing into the right subclavian and common carotid arteries.

brachiocephalic vein
Each of two veins channeling the blood of the head and upper limbs toward the superior vena cava.

brachioradial muscle
Flat muscle connecting the humerus to the lateral face of the radius; it allows flexion of the forearm and assists in its outward rotation (supination).

brain
Part of the central nervous system enclosed in the skull, consisting of the brain, cerebellum and brain stem; it is responsible for sensory perception, most movements, memory, language, reflexes and vital functions.

brainstem
Part of the brain located in the extension of the spinal cord, regulating numerous vital functions and ensuring transmissions between the spinal cord, brain and cerebellum.

breast
In women, paired glandular organ, rich in adipose tissue and covering the pectoral muscles, secreting milk to feed the newborn after birth. In men, the breast does not develop and plays no particular role.

bronchomediastinal lymphatic trunk
Lymphatic vessel draining the lymph of the thorax region.

buccal branches of facial nerve
Branches of the facial nerve, innervating the buccinator and orbicular muscles of the mouth.

buccal nerve
Branch of the mandibular nerve, innervating the skin of the cheek and mucous membrane of the mouth.

buccinator muscle
Main muscle of the cheek, connecting the angle of the mouth to the maxilla and mandible; it enlarges the corner of the lips and, with other muscles, especially allows blowing and whistling.

bulbourethral gland
Each of two male glands located beneath the prostate and secreting part of the sperm into the ureter.

bursa of calcaneal tendon
Serous sac located between the Achilles tendon and rear part of the calcaneus.

buttocks
Fleshy parts located beneath the lombar region, made up mainly of muscles (gluteus maximus muscles) and fat.