cone photoreceptor – one of the two varieties of retinal receptor mobile that's specialised for colour eyesight in the usage of three photopigments distributed by way of a few independent populations of cells.

basal lamina – slim extracellular layer that lies beneath epithelial cells and separates them from other tissues.

codon – consecutive sequence of a few nucleotides on an mRNA molecule that corresponds to a specific amino acid.

The intestinal tract, for instance, is residence to much more bacterial cells than the full of all human cells in the body, nonetheless these germs are outside the house the body and can't be allowed to circulate freely inside the body.

Reproduction will be the formation of a fresh organism from dad or mum organisms. In humans, reproduction is carried out by the male and woman reproductive systems. Due to the fact death will arrive at all complicated organisms, with out copy, the road of organisms would end.

cauda equina – bundle of spinal nerve roots that descend from your lower spinal cord beneath the main lumbar vertebra and lie inside the vertebral cavity; has the appearance of the horse’s tail.

capitate – in the lateral facet, the third of the 4 distal carpal bones; articulates Using the scaphoid and lunate proximally, the trapezoid laterally, the hamate medially, and mostly Along with the 3rd metacarpal distally.

cytoskeleton – “skeleton” of the mobile; formed by rod-like proteins that help the mobile’s condition and provide, amid other capabilities, locomotive capabilities.

cerebral cortex – outermost layer of grey matter while in the brain, wherever mindful perception usually takes spot.

autonomic tone – contractile point out throughout resting cardiac action produced read more by delicate sympathetic and parasympathetic stimulation.

Organic macromolecule – significant molecule essential for lifestyle that is definitely crafted from scaled-down natural molecules.

astrocyte – star-shaped mobile during the central anxious procedure that regulates ions and uptake and/or breakdown of some neurotransmitters and contributes to your formation with the blood-Mind barrier.

blood-Mind barrier (BBB) – physiological barrier involving the circulatory technique and also the central nervous process that establishes a privileged blood provide, proscribing the stream of substances to the CNS.

common carotid artery – here correct common carotid artery arises through the brachiocephalic artery, and also the still left common carotid arises through the aortic arch; gives rise into the external and inside carotid arteries; provides the respective sides of the head and neck.