⚪️ Which of the following is the correct sequence in a typical reflex arc :-
Anonymous Quiz
14%
🔵 effector, afferent neuron, integration center, efferent neuron, receptor.
53%
🔵 receptor, afferent neuron, integration center, efferent neuron, effector.
16%
🔵 effector, afferent neuron, integration center, afferent neuron, receptor.
17%
🔵 receptor, efferent neuron, integration center, afferent neuron, effector.
🔥1
Sympathetic stimulation all the following except
Anonymous Quiz
9%
Increases the heart rate
64%
Constriction of pupil
13%
Relaxes bronchial smooth muscles
14%
Tightens Git sphincters
All nerves of the body present outside the brain and the spinal cord Comprise the ____ nervous system.
Anonymous Quiz
17%
Central
77%
Peripheral
0%
Neurons
2%
Axons
4%
Soma
The sympathetic preganglionic neurons release......... at their terminals ,and the effect is always.........
Anonymous Quiz
12%
Norepinephrine ,inhibitory
40%
Norepinephrine,excitatory
48%
Acetylcholine,excitatory
Norepinephrine are found in the most postganglionic neurons of the parasympathetic division
Anonymous Quiz
26%
True
74%
False
The main difference between ganglia and nuclei is that ganglia clusters of nerve cell bodies in the CNS and the nuclei are clusters of nerve cell bodies in the PNS
Anonymous Quiz
28%
True
72%
False
The following about sympathetic nervous system is true except:
Anonymous Quiz
22%
All its preganglionic fibres are cholinergic.
7%
It is involved in stress & emergency conditions.
63%
It has a V.D. effect on skeletal muscle blood vessels during rest.
9%
Its stimulation increases the cardiac properties.
💡Alpha receptors located at ________ neuroeffector junction, and have greater affinity for ________.
Anonymous Quiz
22%
🌟 Sympathetic, epinephrine
68%
🌟 Sympathetic, norepinephrine
10%
🌟 parasympathetic, acetylcholine
💡The fibers that release acetylcholine are known as.?!
Anonymous Quiz
9%
🌟 Adrenergic fibers
91%
🌟 cholinergic fibers
💡the muscarinic receptors found in ________.
Anonymous Quiz
66%
🌟 postganglionic neurons of parasympathetic nerves system
25%
🌟 preganglionic neurons of parasympathetic nerves system
9%
🌟 postganglionic neurons of sympathetic nervous system
💡postganglionic neurons of sweat gland, and blood vessels in skeletal muscles are _______.
Anonymous Quiz
32%
🌟 adrenergic
68%
🌟cholinergic
💡 Beta receptors located at _________ neuroeffector junction, and have greater affinity for ____________.
Anonymous Quiz
49%
🌟 Sympathetic, epinephrine
39%
🌟 Sympathetic, norepinephrine
12%
🌟 parasympathetic, acetylcholine
💡where the nicotinic receptors found.?!
Anonymous Quiz
17%
🌟 on the preganglionic cell bodies in a sympathetic ganglia
55%
🌟 on the postganglionic cell bodies in a parasympathetic and sympathetic ganglia
27%
🌟 on the preganglionic cell bodies in a parasympathetic ganglia
💡fibers that release norepinephrine are _________ fibers.
Anonymous Quiz
9%
🌟 Cholinergic
91%
🌟 Adrenergic
💡cholinergic fibers contains which type of receptors.?!
Anonymous Quiz
9%
🌟 Beta receptors
85%
🌟 Nicotinic receptors
6%
🌟 Alpha receptors