Neural Control and Coordination Test

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Neural Control and Coordination Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

Which cranial nerve innervates the rectus eye muscle?

A
Trochlear

B
Abducens

C
Trigeminal

D
Oculomotor

Solution

Cranial nerve which innervates rectus muscle of eye is abducens nerve. It is the 6^th cranial nerve.
Question 2
1 / -0

The vital centres of medulla oblongata consist of all the following centres, except

A
cardiovascular centre

B
respiratory centre

C
salivary centre

D
gastric centre

Solution

Salivary centre is reflex centre present in medulla oblongata. It controls the act of swallowing.
Question 3
1 / -0

Which of the following statements is/are true about the parasympathetic nervous system?

a. It is involved in the constriction of pupil.
b. It increases the amplitude and rate of heart beat.
c. Ganglia of parasympathetic system are linked to form a chain.
d. Pre-ganglionic fibres of parasympathetic system are longer than the post-ganglionic fibres.

A
a and b

B
b and c

C
c and d

D
a and d

Solution

Parasympathetic nervous system is involved in the constriction of pupil and pre-ganglionic fibres of parasympathetic system are longer than the post-ganglionic fibres.
Question 4
1 / -0

Which of the following sentences is true about midbrain?

A
Corpora quadrigemina receives some direct fibres from optic nerves.

B
Cavity of midbrain is called crura cerebri.

C
Aqueduct of sylvius contains neurotransmitters.

D
Nerves in midbrain also function in recognising heat, cold and pain.

Solution

The superior colliculus of corpora quadrigemina is involved with saccadic eye movements i.e. simultaneous movement of both eyes.
Question 5
1 / -0

Which one of the following sentences is false about the resting nerve cell?

A
Na⁺ and Ca²⁺ are in high concentrations outside the cell.

B
The plasma membrane is negative outside and positive inside.

C
High concentration of K⁺ ions inside the neuron is found.

D
Plasma membrane is highly impermeable to Na⁺.

Solution

Due to unequal distribution of ions across the membrane, outside of plasma membrane is electrically positive, while inside is negative.
Question 6
1 / -0

Which of the following sentences are true about unconditioned reflexes?

a. It is dependent upon physiological maturation.
b. It has constant reflex arcs.
c. They are temporary by nature.
d. They can be acquired through learning.

A
b and d

B
a and b

C
c and d

D
a and c

Solution

Unconditioned reflex is a reflex that is inborn or dependent on physiological maturation rather than on learning. These reflexes are transmitted through heredity. The reflex arcs of unconditioned reflexes are constant.
Question 7
1 / -0

The Nissl granules in neurons consist of:

a. Endoplasmic reticulum
b. Protein bodies
c. Ribosomal RNA
d. Lipofuscin

A
a and d

B
b and c

C
a and c

D
c and d

Solution

Nissl bodies consist of rough endoplasmic reticulum and associated ribosomal RNA. They are involved in protein synthesis.
Question 8
1 / -0

In the human body, which receptors respond to the feeling of hunger?

A
Tangoreceptors

B
Algesireceptors

C
Statoreceptors

D
Interoceptors

Solution

Interoceptors are present inside the body. They sense the feelings of hunger and thirst.
Question 9
1 / -0

Pigment iodopsin in the eyes is sensitive to

A
dim light only

B
bright light only

C
violet light only

D
green light only

Solution

Iodopsin pigment is present in cones, they are sensitive to bright light only. The cones help in seeing colours.
Question 10
1 / -0

Where are the Deiters' cells located in the human ear?

A
Macuala

B
Helicotrema

C
Organ of corti

D
Eustachian tubes

Solution

Deiters' cells are present in the organ of corti. Deiters' cells are also called phalangeal cells, which separate and support both the outer hair cells (OHCs) and the inner hair cells (IHCs).

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Re-Attempt Weekly Quiz Competition

Neural Control and Coordination Test - 3

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Neural Control and Coordination Test - 3

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SHARING IS CARING

Question 1

Trochlear

Abducens

Trigeminal

Oculomotor

Solution

Question 2

cardiovascular centre

respiratory centre

salivary centre

gastric centre

Solution

Question 3

a and b

b and c

c and d

a and d

Solution

Question 4

Corpora quadrigemina receives some direct fibres from optic nerves.

Cavity of midbrain is called crura cerebri.

Aqueduct of sylvius contains neurotransmitters.

Nerves in midbrain also function in recognising heat, cold and pain.

Solution

Question 5

Na+ and Ca2+ are in high concentrations outside the cell.

The plasma membrane is negative outside and positive inside.

High concentration of K+ ions inside the neuron is found.

Plasma membrane is highly impermeable to Na+.

Solution

Question 6

b and d

a and b

c and d

a and c

Solution

Question 7

a and d

b and c

a and c

c and d

Solution

Question 8

Tangoreceptors

Algesireceptors

Statoreceptors

Interoceptors

Solution

Question 9

dim light only

bright light only

violet light only

green light only

Solution

Question 10

Macuala

Helicotrema

Organ of corti

Eustachian tubes

Solution

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Na⁺ and Ca²⁺ are in high concentrations outside the cell.

High concentration of K⁺ ions inside the neuron is found.

Plasma membrane is highly impermeable to Na⁺.