Processes from which type of cell are vital for the formation of the blood brain barrier?
A. Schwann cells
B. oligodendrocytes
C. microglia
D. ependymal cells
E. podocytes
F. astrocytes
Blood brain barrier (BBB) is a diffusion barrier which protect the brain from fluctuation in plasma composition,from the circulating harmful agents like xenobiotics,neurotransmitter which are capable of disturbing the neural functions.
Blood brain barrier is made up of these components like astrocytes end feet encircling the endothelial cell ,microglia,pericytes. Astrocytes are the tight junction that helps in the differentiation of blood brain barrier.
Processes from which type of cell are vital for the formation of the blood brain barrier?...
5 The type of neuroglia that wrap around capiltlaries in the blood -brain barrier are the A) astrocytes B) Schwann cells. C) D) microglia. E) ependymal cells. 58) The main relay center for conducting information between the spinal cord and the cerebrum is the A) thalamus. B) insula. C) corpus callosum D) cerebellar peduncles E) tentorium cerebelli. s9) The brain stem is made up of the A) cerebellum, pons, and hypothalamus. B) medulla oblongata, thalamus, and midbrain. C medulla oblongata,...
The brain and spinal cord make up the Select one: O a. Peripheral nervous system O b. Enteric nervous system O c. Autonomic nervous system O d. Central nervous system Which type of neuroglial cells help to produce and circulate cerebrospinal fluid? Select one: O a. Microglia O b. Ependymal cells O c. Oligodendrocytes O d. Astrocytes Question 70 Not yet answered Points out of 1 P Flag question During the the process of depolarization, Select one: O a. Potassium...
Question 1 (1.5 points) Which glial cell moderates the clearance of glutamate when you are asleep? Schwann cells O microglia cells O Oligodendrocytes O astrocytes
QUESTION 4 Which of the following statements about the blood-brain-barrier (BBB) is NOT true? a. weaker near area posterma, pituitary & pineal glands Ob.composed of astrocytes and 'tight junctions c. large and electrically charged molecules pass out of the capillary easily d.small, uncharged molecules pass through the endothelial membrane e. glucose, amino acids, and fats are carried across the membrane by active transport
1. Which of the following substances cannot cross the blood-brain barrier under normal circumstances? a. botulinum b. ethanol c. insulin d. ampicillin e. all of the above will not cross the blood-brain barrier 2. Damage to which of the following would impair speech: a. left temporal lobe of the cerebrum b. Broca's and Wernicke's areas c. trigeminal nerve d. glossopharyngeal nerve e. all of the above 3. Which of the following medications would be most helpful to a patient with...
Multiple-choice/True-false/Matching: 1. The sympathetic division of the ANS releases which of the following neurotransmitters to effectors? a) epinephrine/norepinephrine b) ACH ) GABA d) serotonin 2. Which of the following cranial nerves is associated with your sense of smell? a) Xb) II. c) II d) Vile) 3. Which of the following is concerned with the coordination of skeletal muscles and the maintenance of normal muscle tone? a) thalamus b) cerebellum c) pons d) hypothalamus e) medulla oblongata 4. The ANS is...
Items reclaimed during tubular reabsorption are returned to the ;A)blood brain barrier B) renal pelvis C) minor calyx D) collecting system E) all the above F) none of the above ,. Also explain the answer?
7. Following a stroke some injured A. B. Microglial cells C. Oligodendrocytes Astrocytes and oligodendrocytes Oligodendrocytes and ependymal cells D. E. Cerebrospinal fluid is found between A. Vertebrae and meninges B. Arachnoid and the dura mater C. Pia mater and the cortical brain tissue D. Pia mater and arachnoid E. None of the above 8. 9. The spinal cord ends at the level of theand andlumbar vertebrae A. 1st/ 2nd B. 12th thoracic/ 1t C. 4th s E. It never...
Convolutions on the surface of the cerebrum are called gyrii concretions sulci fissures trabeculae The brainstem consists of the cerebrum, pons, midbrain and medulla pons, medulla, and midbrain cerebellum, medulla, and pons all of the above none of the above Following a stroke some injured cells within the brain die. The dead cells are phagocytized by astrocytes oligodendrocytes microglial cells astrocytes and microglial cells ependymal cells and Schwann cells Centers for vomiting, coughing, and sneezing are located in the pons...
no explaination is needed 22. Rising blood sugar levels will Icad to a) increasing insulin production. b) decreasing insulin production. c) increasing insulin degradation. d) no change in insulin levels. 23. Which type of cells form the myelin sheaths around axons? a) Schwann cells b) Astrocytes c) Adjacent nerve cells d) Muscle cells 24. The concentration difference of ions across the membrane is maintained by a) Na+ ion channels. b) the Na+K+pump. c) K+ channels. d) Cl- channels 25. The...