ID: B Name: 13. Transmission of nerve impulses across the synapses concentration
ID: 3166552 • Letter: I
Question
ID: B Name: 13. Transmission of nerve impulses across the synapses concentrations of the chemicals known as a neurotransmitters b. endorphins The body's control center and commenication systems, is (the) c. dopamine d. chromatids 14. network, which directs the functions of the body's organs and c. acetylcholine d. nervous system b. reflex arc 15. Which of the two senses below are intimately associa a. smell and touch e. taste and smell d. hearing and smel b. hearing and taste 16. Which body system a. nervous system b. endocrine system coordinates activities of body parts through the release of hormones in the blood? circulatory system d. hormonal system 17. The chamber is located between the cormea and lens of the eye and contains aqueous a. posterior b. inferior superior d. anterior 18. The "whites" of the eye are the a. choroid b. retina c. sclera d. fovea centralis The fovea centralis is a part of which layer of the eye and is responsible for fine tuning a a. lens 19. image? c cormea d. pupil b. retina 20. The three layers of connective tissue membranes that cover and protect the spinal cord and brain are the a. neurofibral nodes b. ventral roots c. meninges d. Nissl bodies 21. Which of the following hormones are not produced by the anterior lobe of the pituitary gland? e. oxytocein d. growth b. melanocyte stimulating The central nervous system consists of the a. brain and spinal cord b. brain and nerves 22. brain and neurotransmitters nerves and spinal cord c. d. 23. What is the function of neuroglial cells? support and protect neurons produce new neurons c. all of the above a. b. d. conduct nerve impulses Gaps in the myelin sheath that allow ions to flow freely from extracellular fluids to the axons are known as 24. c. dorsal roots d. Nissl bodies a. nodes of Ranvier b. Schwann cells When the concentration of a particular hormone reaches a certain level in the body, the endocrine gland that secreted that hormone is inhibited and the secretion of that hormone ceases or decreases significantly. This is known as (the) 25. hormonalization negative feedback system c. polyuria b. androgen theory d.Explanation / Answer
13. Neurotransmitters
They secrete in synaptic region between two neurons and stimulate transmission.
14. Nervous system
15. Taste and smell,
They work together and in general the food we eat doesnt smell good we don't eat it.
16. Endocrine system
17. Anterior chamber
18. Sclera,
It contains collagen and elastic fibres and its opaque formation gives it name whites of the eye.
19. Retina
They give the clearest and sharpest vision by directly interaction of cones cells of retina with light.
20. Adrenocorticotropic,
21. Brain and spinal cord
23. All of the above
24. Nodes of ranvier
25. Negative feedback system