5 Simple Statements About human anatomy & physiology Explained
5 Simple Statements About human anatomy & physiology Explained
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ampulla – within the ear, the construction at the base of a semicircular canal that contains the hair cells and cupula for transduction of rotational motion of The pinnacle.
basal lamina – slender extracellular layer that lies beneath epithelial cells and separates them from other tissues.
bronchial bud – composition while in the creating embryo that sorts in the event the laryngotracheal bud extends and branches to kind two bulbous buildings.
costal cartilage – hyaline cartilage composition hooked up to your anterior conclusion of each rib that provides for either direct or indirect attachment of most ribs for the sternum.
chordae tendineae – string-like extensions of difficult connective tissue that extend within the flaps of your atrioventricular valves to your papillary muscles.
anterior column – white issue concerning the anterior horns of the spinal twine made up of a number of groups of axons of both of those ascending and descending tracts.
arrector pili – smooth muscle mass which is activated in reaction to external stimuli that pull on hair follicles and make the hair “get up”.
brachial artery – continuation from the axillary artery from the brachium; provides blood to A great deal of your brachial area; provides off many smaller sized branches that present blood towards the posterior surface in the arm from check here the location in the elbow; bifurcates in to the radial and ulnar arteries within the coronoid fossa.
Lively transport – human anatomy method of transportation throughout the cell membrane that requires input of cellular Vitality.
antigen presentation – binding of processed antigen towards the protein-binding cleft of An important histocompatibility advanced molecule.
ABO blood group – blood-sort classification based upon the existence or absence of A and B carbohydrates within the erythrocyte membrane floor.
arterial circle – (also, circle of Willis) anastomosis Found at the base in the Mind that guarantees continual blood offer; shaped from branches of The interior carotid and vertebral arteries; materials blood towards the brain.
axon – one strategy of the neuron that carries an electrical signal (action opportunity) far from the mobile body towards a concentrate on mobile.
allantois – finger-like outpocketing of yolk sac sorts the primitive excretory duct in the embryo; precursor towards the urinary bladder.