MCQ Pratice Test - Chapter-18-Neural Control And Coordination

Instruction

Total Questions : 20

Total time :20 min

Total Marks : 20 x 3 = 60 Marks

Each Correct Question carries : 3 Marks

Each incorrect Question Carries : -1 Marks

Each Unattempted Question carry : 0 Marks

Be careful On Negative Markings

All of the following are correct statements about non-medullated nerve fibres, except

It is enclosed by Schwennlls that do not form a myelin sheath around axons

It is found in spinal and cranial nerves

It is commonly found in autonomous and somatic neural system

All the above

None

The _________ is central for planning the movements and blocking unsuitable behavior, and also has roles in memory.

visual cortex

motor cortex

prefrontal cortex

somatosensory cortex

None

Select the correct option:

Blood-brain barrier in adults has ........... junctions between cells.

Gap

Occluding

Adhering

Tight

None

The peripheral nervous system transmits messages to and from the sense organs and is responsible for

Reflex actions

Voluntary actions

Involuntary actions

Autonomic actions

None

The following are endothermic mammals. Amongst them there is a pair where the broad transverse band of nervous tissue connecting the two cerebral hemisphere is either poorly developed or absent

1. Didelphis (Opossum)

2. Delphinus (Dolphin)

3. Tachyglossus (Echidna)

4. Pteropus (Fruit Bat)

2 and 4

3 and 4

1 and 2

1 and 3

None

Which of the following is not a characteristic of the human sympathetic nervous system?

Increases heart beat

Has ganglia near the spinal cord

Prepares the person for fight or flight

Is a craniosacral division of the autonomic nervous system

None

Which one of the following is not a refractive medium of the eye?

Lens

Aqueous humour

Vitreous humour

Pupil

None

Select the wrong paired match from the following.

SNS - Relays impulses from the CNS to skeletal muscles

CNS - Site of information processing and control

PNS - Transmission of impulses to and from the CNS

ANS - Transmission of impulses from the CNS to voluntary organs

None

When a person is suddenly pushed from height by an attacker, his blood pressure and heart rate increase. Control through which centre of brain would normalise his condition?

Cerebellum

Pons

Medulla oblongata

Cerebrum

None

10.

Choose the correct answer from the alternatives given.

The cervical plexus supplies the:

upper extremities

head and shoulders

head, neck, and shoulders

abdominal regions

None

11.

Find out the incorrect statement.

Macula and cristae are present in the inner ear which function in hearing.

Rods contain pigmented protein called rhodopsin which helps in dim light vision.

The tongue contains gustatory receptors for sweet, salt, sour and bitter

The organ of corti is present on the basilar membrane in the cochlea.

None

12.

The muscles responsible to move the eye ball are the

4 recti and 4 olique muscles

2 oblique and 4 recti muscles

2 recti and 4 oblique muscles

2 recti and 2 oblique muscles

None

13.

The direction of light striking the retina will be-

Sensory nerves → → ganglionic cells → → bipolar neurons → → photosensory cells

Sensory nerves → → bipolar neurons → → ganglionic cells → → Photosensory cells

Photosensory cells → → ganglionic cells → → bipolar neurons → → sensory nerves

Photosensory cells → → bipolar neurons → → ganglionic cells → →sensory nerves

None

14.

Consider the following statements and state true or false.

1. Synaptic cleft of neurons secrete adrenaline.

2. Myelinated nerve fibres and enveloped with Schwann cells, which form a myelin sheath around the axon.

3. Non-myelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath.

4. Spinal cord and cranial nerves are made up of non-myelinated nerve fibres.

1, 2 are correct but 3 and 4 are wrong.

3 and 4 are correct while 2 and 3 are wrong.

1, 2 and 3 are correct but 4 is wrong.

2 and 3 are correct while 1 and 4 are wrong.

None

15.

The parasympathetic division of the autonomic nervous system:

has ganglia near or within visceral effectors

is concerned with conserving and restoring energy H

arises from the cranial and sacral spinal cord segments

all of the above

None

16.

Which statement is incorrect regarding cerebral cortex?

It shows prominent fields

Fibres of tract in cortex are covered with myelin sheath3

It consists of grey matter

Large area of cortex neither clearly sensory nor motor

None

17.

Read the statements about human neural system and find the wrong one.

Autonomic neural system transmits impulses from CNS to involuntary organs and smooth muscles.

PNS is divided into somatic and autonomic neural systems.

Somatic neural system is classified into sympathetic and parasympathetic systems

CNS includes the brain and spinal cord.

None

18.

Overall nerves slow down the body and divert energy to digestion and other basic housekeeping tasks; and nerves slow down housekeeping tasks and increase overall activity, in times of heightened awareness or excitement.

Sympathetic; Parasympathetic

Parasympathetic; Sympathetic

Autonomic; Somatic

Peripheral; Central

None

19.

Select the correct statement regarding the Schwann cells.

Found in Haversian system of bones

Form basement membrane of epithelium.

Surround axon of myelinated nerve fibre

Support muscle fibres

None

20.

Pick the correct statements about the main functions of cerebrum in humans a)Control contraction of voluntary muscles through frontal lobe

b)Control sensitivity, movement, memory, vocabulary through frontal lobe c)Control temperature, taste, touch, pain, etc. through parietal lobe

d)Control vision and adaptation through occipital and frontal lobes

b, c, d

a, b, c

a, c, d

a, b, d

None

Chapter 14 -Breathing and Exchange of Gases

Chapter-15-Body Fluids And Circulation

Chapter-16-Excretory Products And Their Elimination

Chapter-17-Locomotion And Movement

Chapter-18-Neural Control And Coordination

Chapter-19-Chemical Coordination And Integration

Instruction

Curriculum

Ncert -Class 11 - Biology- Unit- 5-HUMAN PHYSIOLOGY

Chapter 14 -Breathing and Exchange of Gases

Chapter-15-Body Fluids And Circulation

Chapter-16-Excretory Products And Their Elimination

Chapter-17-Locomotion And Movement

Chapter-18-Neural Control And Coordination

Chapter-19-Chemical Coordination And Integration

MCQ Pratice Test – Chapter-18-Neural Control And Coordination

Instruction