human anatomy and physiology notes Things To Know Before You Buy

human anatomy and physiology notes Things To Know Before You Buy

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ampulla – within the ear, the composition at the base of the semicircular canal which contains the hair cells and cupula for transduction of rotational motion of the head.

diencephalon – location on the adult Mind that retains its identify from embryonic growth and features the thalamus and hypothalamus.

corpus cavernosum – either of two columns of erectile tissue within the penis that fill with blood through an erection.

central canal – longitudinal channel during the centre of each and every osteon; consists of blood vessels, nerves, and lymphatic vessels; also called the Haversian canal.

cranial – describes a posture higher than or better than Yet another Portion of the body right; also called top-quality.

anterior cavity – more substantial body cavity Positioned anterior for the posterior (dorsal) body cavity; consists of the serous membrane-lined pleural cavities with the lungs, pericardial cavity to the heart, and peritoneal cavity for the abdominal and pelvic organs; also known as ventral cavity.

bursa – connective tissue sac made up of lubricating fluid that stops friction amongst adjacent buildings, such as skin and bone, tendons and bone, or between muscles.

mobile cycle – life cycle of one mobile, from its start until eventually its division into two new daughter cells.

atrioventricular bundle – (also, bundle of His) group of specialised myocardial conductile cells that transmit check here the impulse from your AV node throughout the interventricular septum; sort the remaining and correct atrioventricular bundle branches.

descending tract – central anxious program fibres carrying motor commands within the Mind for the spinal twine or periphery.

anterior cardiac veins – vessels that parallel the smaller cardiac arteries and drain the anterior floor of the right ventricle; bypass the coronary sinus and drain instantly into the ideal atrium.

bundle of His – (also, atrioventricular bundle) group of specialised myocardial conductile cells that transmit the impulse through the AV node from the interventricular septum; kind the still left and proper atrioventricular click here bundle branches.

Of such features, guidance is among the most primitive plus the oldest; Also, the axial A part of the skeleton was the very first to evolve. The vertebral column, similar to the notochord in decrease organisms, is the key assistance of the trunk.

cytokinesis – final phase in mobile division, wherever the cytoplasm divides to variety two independent daughter cells.