5 Simple Techniques For human anatomy and physiology definition

cytoplasm – interior material in between the cell membrane and nucleus of the mobile, mainly consisting of a water-based fluid called cytosol, in just that are all one other organelles and mobile solute and suspended supplies.

cardiac notch – melancholy during the medial surface from the inferior lobe on the remaining lung wherever the apex of your heart is found.

dense body – sarcoplasmic composition that attaches into the sarcolemma and shortens the muscle as skinny filaments slide previous thick filaments.

distal radioulnar joint – articulation amongst The top from the ulna and the ulnar notch in the radius.

cupula – specialised construction within the base of a semicircular canal that bends the stereocilia of hair cells when the head rotates By means of the relative motion of the enclosed fluid.

clonal anergy – approach whereby B cells that respond to soluble antigens in bone marrow are made non-purposeful.

bursa – connective tissue sac made up of lubricating fluid that prevents friction concerning adjacent structures, such as skin and bone, tendons and bone, or involving muscles.

antibodies – (also, immunoglobulins or gamma globulins) antigen-distinct proteins made by specialised B lymphocytes that safeguard the body by binding to overseas objects check here like germs and viruses.

dermal papilla – (plural = dermal papillae) extension from the papillary layer of your dermis that increases surface Speak to concerning the epidermis and dermis.

The 3rd standard perform in the skeleton is the fact that of movement. The nice majority with the skeletal muscles are firmly anchored towards the skeleton, commonly to no less than two bones and occasionally to quite a few bones.

acromion – flattened bony system that extends laterally with the scapular backbone to form the bony tip of the shoulder.

cytokines – course of proteins that act as autocrine or paracrine signalling molecules; in the cardiovascular process, they stimulate the proliferation of progenitor cells and support to encourage each nonspecific and precise resistance to disease.

bulbus more info cordis – part of the primitive heart tube that can ultimately acquire into the proper ventricle.

basal mobile – form of stem cell found in the stratum basale and in the hair matrix that continuously undergoes mobile division, generating the keratinocytes of your epidermis.

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