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A&P lecture Exam 2

CNS - Hoostal

Function of an astrocyte Aid in the BBB by wrapping astrocyte processes around capillaries
These in the frontal cortex and hippocampus store and release glycogen as a reservoir of glucose. Astrocytes
Astrocytes are neuroglia of the..... CNS
Function of oligodendrocyte Produces myelin sheath around axons of the CNS; cannot regenerate
Oligodendrocytes are neuroglia of the... CNS
Function of microglia phagocytosize microbes and damaged nervous tissue
What is a phagocyte? cells that can digest microbes and other foreign particles
What is a phagosome? A vesicle formed around a particle, absorbed by phagocytosis , formed by the fusion of the cell membrane around the particle
Function of ependymal neuroglia produce CSF from arterial blood; line ventricles
Ependymal neuroglia are part of the... CNS
Function of satellite cells flat cells that give structural support and material exchange to cell bodies of PNS nerve cells
Satellite cells are part of the... PNS
Function of Schwann cells neuroglia that myelinate axons in the PNS; can regenerate
Schwann cells are neuroglia of the... PNS
The meninges include: Pia mater, Dura mater, arachnoid mater
What layer is the pia mater? The inner layer of meninges
What layer is the dura mater? outer sac of the meninges
What layer is the arachnoid mater? the middle layer of the meninges
Function of the brainstem connects the cerebrum with the spinal cord, also provides sensory and motor relays to the face and neck via the cranial nerves
The brainstem consists of... midbrain, medulla oblongata, pons, and reticular activating system (RAS)
The diencephalon consists of what 3 parts Thalamus, Epithalamus (including pineal gland), and hypothalamus
What are the hormones of the hypothalamus? -Corticotropin-releasing hormone (CRH) -Adrenal corticotrophic hormone (ACTH) -Gonadotropin-releasing hormone (GnRH) -Thyrotropin releasing hormone (TRH) - Growth hormone-releasing hormone (GHRH) -Growth hormone-inhibiting hormone (GHIH -Oxytocin
Functions of the hypothalamus -Axons extend from nuclei to sympathetic & parasympathetic nuclei in the brain stem & spinal cord to regulate HR, movement of food t/ the GI tract, & contraction of the urinary bladder, -Control of body temp -Satiety, hunger, and thirst center
Created by: Sterry