Neural Control and Coordination Test

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Neural Control and Coordination Test - 56

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Weekly Quiz Competition

Question 1
1 / -0

Which part of the brain controls the rhythmic movement of the muscles?

A
Cerebrum

B
Olfactory lobe

C
Cerbellum

D
Occipital lobe
Solution
- The cerebrum is the most anterior part of the brain which is responsible for neural and sensory functions as well as the initiation and coordination of the voluntary activities of the body.
- Olfactory lobe is the anterior part of the cerebrum in the forebrain, they are concerned with the sense of smell.
- Cerebellum receives information from the spinal cord and other parts of the brain which is responsible for motor movements, it regulates speech, coordination, balance and muscular movements.
- The occipital lobe is the part of the cerebrum in the brain, it is responsible for the sense of vision.
So, the correct option is 'cerebellum'.
Question 2
1 / -0

Read the following statements and select the correct option for ear pinna.

A
It is composed of white fibrous cartilage

B
It is consider as vestigeal organ

C
It has role in collection of sound waves

D
It contains ceruminous glands

Solution

Ear pinna is called the auricle which is the outer portion of the ear. The main function of ear pinna is to collect sound waves and channel waves into the ear canal where the sound is amplified.
So, the correct answer is C.
Question 3
1 / -0

The given figure shows the structure of a neuron. Select the option that correctly identifies the parts labelled as A to E.

A
A-Nerve fibres, B-Cyton, C-Schwann cell, D-Node of Ranvier, E-Synaptic Knob

B
A-Dendrites, B-Cyton, C-Schwann cell, D-Node of Ranvier, E-Synaptic Knob

C
A-Dendrites, B-Nerve cell, C-Schwann cell, D-Synaptic Knob, E-Node of Ranvier

D
A-Axons, B-Cyton, C-Nerve cell, D-Node of Ranvier, E-Synaptic Knob

Solution

Solution: B.
Neurons vary in shape, size and structure according to their location and function. Nearly all neurons have three parts namely: cell body, axon and dendrites. Some axons are covered with myelin sheath i.e. insulated fatty substance, which is formed by Schwann cells.
Question 4
1 / -0

Ascending nerve tracts, carrying impulse from spinal cord to brain passes through

A
Dorsal funiculus

B
Lateral funiculus

C
Ventral funiculus

D
Ventricles

Solution

Dorsal funiculus the white substance of the spinal cord lying on either side between the posterior median sulcus and the dorsal root.
So, the correct answer is 'Dorsal funiculus'
Question 5
1 / -0

How many types of autonomous system are seen?

A
Two

B
Three

C
Four

D
One
Solution
An autonomous nervous system is responsible for maintenance of internal body environment, it is of two types :
Sympathetic nervous system- It activates the fight and flight mode of the body, maintains homeostasis.
Parasympathetic nervous system- It is called rest and digest system, conserves energy, decreases heart rate, increases intestinal and gland activities.
So, the correct option is ' Two'.
Question 6
1 / -0

Which one of the following features is common in silver fish, scorpion, dragonfly and prawn?

A
Three pairs of legs and segmented body

B
Chitinous cuticle and two pairs of antennae

C
Jointed appendages and chitinous exoskeleton

D
Cephalothorax and tracheae

Solution

Silver fish, scorpion, dragonfly and prawn belong to the Phylum Arthropoda and thus, have jointed appendages and chitinous exoskeleton.
Question 7
1 / -0

The $$3^{rd}, 6^{th} and 11^{th}$$ cranial nerves are respectively

A
oculomotor, abducens and accessory

B
oculomotor, trigeminal and accessory

C
optic, facial and accessory

D
trochlear, abducens and vagus

Solution

In higher vertebrates (reptiles, birds, mammals) there are 12 pairs of cranial nerves- olfactory (I), optic (II), oculomotor (III), trochlear (IV), trigeminal (V), abducens (VI), facial (VII), vestibulocochlear (VIII), glossopharyngeal (IX), vagus (X), accessory (XI), and hypoglossal (XII).
Question 8
1 / -0

Assertion:
A myelinated nerve fibre is enveloped by Schwann cells, which form a myelin sheath around the axon.

Reason:
An unmyelinated nerve fibre is not enclosed by a Schwann cell and hence does not form a myelin sheath around the axon.

A
Both assertion and reason are true and the reason is the correct explanation of the assertion

B
Both assertion and reason are true but the reason is not the correct explanation of the assertion

C
Assertion is true but reason is false

D
Both assertion and reason are false

Solution

The myelinated nerve fibres contain a myelin sheath surrounding the axons of nerve cells. Unmyelinated nerve fibre is not enclosed by a Schwann cell and hence does not form a myelin sheath around the axon.
So the correct option is B.
Question 9
1 / -0

The optic lobes in humans are represented by the corpora _________.

A
Bigemina

B
Arenacea

C
Striata

D
Quadrigemina
Question 10
1 / -0

Human body temperature is maintained by _____________.

A
Hypothalamus

B
Medulla oblongata

C
Pituitary

D
Cerebral cortex

Solution

Hypothalamus is a part of forebrain. It is the thermoregulatory centre of the brain. It keeps body temperature at roughly $$30^0$$C by means of a complex thermostat system.

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Re-Attempt Weekly Quiz Competition

Neural Control and Coordination Test - 56

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Neural Control and Coordination Test - 56

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SHARING IS CARING

Question 1

Cerebrum

Olfactory lobe

Cerbellum

Occipital lobe

Solution

Question 2

It is composed of white fibrous cartilage

It is consider as vestigeal organ

It has role in collection of sound waves

It contains ceruminous glands

Solution

Question 3

A-Nerve fibres, B-Cyton, C-Schwann cell, D-Node of Ranvier, E-Synaptic Knob

A-Dendrites, B-Cyton, C-Schwann cell, D-Node of Ranvier, E-Synaptic Knob

A-Dendrites, B-Nerve cell, C-Schwann cell, D-Synaptic Knob, E-Node of Ranvier

A-Axons, B-Cyton, C-Nerve cell, D-Node of Ranvier, E-Synaptic Knob

Solution

Question 4

Dorsal funiculus

Lateral funiculus

Ventral funiculus

Ventricles

Solution

Question 5

Two

Three

Four

One

Solution

Question 6

Three pairs of legs and segmented body

Chitinous cuticle and two pairs of antennae

Jointed appendages and chitinous exoskeleton

Cephalothorax and tracheae

Solution

Question 7

oculomotor, abducens and accessory

oculomotor, trigeminal and accessory

optic, facial and accessory

trochlear, abducens and vagus

Solution

Question 8

Both assertion and reason are true and the reason is the correct explanation of the assertion

Both assertion and reason are true but the reason is not the correct explanation of the assertion

Assertion is true but reason is false

Both assertion and reason are false

Solution

Question 9

Bigemina

Arenacea

Striata

Quadrigemina

Question 10

Hypothalamus

Medulla oblongata

Pituitary

Cerebral cortex

Solution

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