35229544
Description
Quiz by Halima Mahmoud, updated more than 1 year ago
|
Created by Halima Mahmoud
almost 3 years ago
|
|
Question 1
Question
True about Myopia: (short/nearsightedness)
Answer
-
A) Focal length of the eyeball is too long
-
B) Focal length of the eyeball is too short
-
C) Objects far away can be seen well
-
D) I think there was something about “far away objects are focused ... on the retina and near objects are focused ... on the retina?
-
E) Far point can be 1m away
Question 2
Question
9. Visual acuity:
Answer
-
A) Depends on the state of rods
-
B) Means the distance of ... and 1 arc
-
C) Depends on the visual field
-
D) Can be impaired by defects of focusing
Question 3
Question
True about gamma motor neuron
Answer
-
A) They maintain activity of Ia afferent
-
B) They detect the length of extrafusal muscle fibres
-
C) They produce contraction of nuclear bag and chain fibres
-
D) They stimulate the activity of Ib fibres
Question 4
Question
Multi unit smooth muscle
Answer
-
A) Elicited by postganglionic neurons
-
B) Elicited by nicotinic receptor
-
C) Same distance as intramuscular conduction (something like that)
-
D) Gap junction ... affected by smooth muscle
Question 5
Question
15. Location of cholinergic receptors:
Answer
-
A) Endocrine cells of medulla of adrenal gland
-
B) Sarcolemma of smooth muscle cells of urinary bladder
-
C) Sarcolemma of skeletal muscle cells
-
D) Sarcolemma of smooth muscle cells of systemic veins
-
E) Sarcolemma of visceral smooth muscle cells of gallbladder
Question 6
Question
22. What statement is right concerning beta rhythm:
Answer
-
B) Low frequencies high amplitude in NREM sleep
-
C) Forms sleep spindles in EEG
-
D) Appears over occipital lobes when eyes are closed
-
E) Measured mostly on frontal lobe for conscious thought
Question 7
Question
Sympathetic system:
Answer
-
A) Contraction of smooth muscles of vessel by alpha 1-Adrenergic receptor
-
B) Decrease dilation of bronchi by beta 2-adrenergic receptor
-
C) Increased liberation of epinephrine mediated by alpha1
-
D) Decrease contraction of gastric sphincter by beta 1-adrenergic receptor
Question 8
Question
8. True about the phenomena of beginning of depolarisation of skeletal muscl
Answer
-
A) Nicotinic receptor generates action potential on motor neuron end plate
-
B) ACh generates end plate potenial
-
C) Muscarinic M1 —> IPSP on motor end plates
-
D) EPP on sarcolemma by ligand gated channels (Ryanodine receptors)
Question 9
Question
14. Which are part of the withdrawal reflex arc:
Answer
-
A) Excitatory interneuron
-
B) Alpha neuron
-
C) Golgi tendon organ
-
D) Muscle spindle
-
E) D alpha input
-
F) 1 alpha input
Question 10
Question
16. Dark adaptation of the eye:
Answer
-
A) Degeneration of rhodopsin
-
B) Regeneration of light sensitive of rhodopsin
-
C) Constriction of pupil
-
D) Dilation of pupil
-
E) Increased sensitivity of retina for light
Question 11
Question
-18. What is right about audition:
Answer
-
A) Stereo-cilia bend towards kinocilium, this causes opening of potassium channels (cell discharge more frequently)
-
B) Behind scala media vibration causes 20Hz
-
C) Impulse goes to cochlear nerve...
Question 12
Question
-21. In synaptic transmission:
Answer
-
A) End plate potential is produced by ligand-gated sodium channels
-
B) Calcium ions enter axon terminal through voltage gated channels
-
C) Calcium mediates resynthesis of neurotransmitters
-
D) Presynaptic inhibition mediated by inhibitory transmitter as GABA producing IPSP in axon terminal other than neuron, Such process decreases ability of axon to conduct action potential
Question 13
Question
-25. Graded action potential — find true:
Answer
-
A) Develops in axon hillock
-
B) Develops outside of axon hillock
-
C) Native nicotinic receptor
-
D) EPP is an example of IPSP
Question 14
Question
12. Rhodopsin:
Answer
-
A) Composed of transducer and photopsin
-
B) Ionotropic receptor of the free floating disc of the outer segment of the rods
-
C) More sensitive to light than photopsin
-
D) Mechanoreceptor of coupled G-protein
Question 15
Question
6. Auditory pathway — correct order:
A) Inferior colliculus -
B) Neurons of medial geniculate nucleus -
C) Neurons of spiral ganglia -
D) Cochlear nucleus (ventral + dorsal) -
E) Superior olive -
F) Cortex (Brodmanns 41) -
Answer
-
A, C, B, D, F, E
-
C, D, A, E, B, F
-
A, B, C, E, D, F
-
C, F, A, B, E, D
Want to create your own Quizzes for free with GoConqr? Learn more.