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Anatomy and Physiology Bio 252 - Lecture Exam 1 Questions and Correct Answers $12.49   Add to cart

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Anatomy and Physiology Bio 252 - Lecture Exam 1 Questions and Correct Answers

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Anatomy and Physiology Bio 252 - Lecture Exam 1 Questions and Correct Answers BIOS 252: | BIOS 252 ANATOMY & PHYSIOLOGY II (BIOS252)Anatomy ~~~ The study of structure Physiology ~~~ The study of function Homeostasis ~~~ Adjusting to maintain a constant internal environment that makes po...

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  • November 7, 2024
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Anatomy and Physiology Bio 252 - Lecture
Exam 1 Questions and Correct Answers
Anatomy

✓ ~~~ The study of structure




Physiology

✓ ~~~ The study of function



Homeostasis

✓ ~~~ Adjusting to maintain a constant internal environment that makes possible
optimal functioning



4 General Types of Tissue

✓ ~~~ 1. Connective 2. Muscular 3. Nervous 4. Epithelial



Organ

✓ ~~~ When two different types of tissue work together



Central Nervous System

✓ ~~~ The Brain and Spinal Cord. The control room.




Peripheral Nervous System

✓ ~~~ Cranial Nerves and Spinal Nerves (Everything else besides brain and spinal
cord). Sensory and motor functions.




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,Sensory

✓ ~~~ (Afferent) Somatic: skin, skeletal muscles, joints
Visceral: internal organs




Motor

✓ ~~~ (Efferent) Somatic: skeletal muscles
Autonomic: smooth muscle cells, cardiac muscles, glands




Myelin Sheath

✓ ~~~ Whitish, fatty (protein-lipid) segmented coating around most (not all) long axon
that is made out of other cells that are not neurons.



Functions of the Myelin Sheath

✓ ~~~ 1. Protect the axon
2.Electrically insulate fibers

3. Increase speed of nerve impulse transmission




Fascicles

✓ ~~~ Bundles of axons




Types of neuroglia cells in the CNS

✓ ~~~ 1. Astrocytes
2. Microglia




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, 3. Oligodendrocyte

4. Ependymal Cells

* These cells CANNOT generate action potential




Astrocytes

✓ ~~~ Support and brace neurons, and control the chemical environment




Microglia

✓ ~~~ The immune cells of the CNS. They phagocytose.



Oligodendrocytes

✓ ~~~ The insulators of the thick neurons. Responsible for the myelin sheath of the
CNS.



Ependymal Cells

✓ ~~~ Cells responsible for circulating the CSF. Line the central cavities of the brain
and spinal column. Bring in nutrients and filter out waste.



Hydrocephalous

✓ ~~~ A condition in which there is excess cerebropspinal fluid in the brain. The result
of ependymal cells not functioning properly.




Types of neuroglia cells in the PNS

✓ ~~~ 1. Schwann Cells
2. Satellite Cells





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