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

Choose the correct answer from the alternatives given.

The cervical plexus supplies the:

abdominal regions

upper extremities

head and shoulders

head, neck, and shoulders

None

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

PNS is divided into somatic and autonomic neural systems.

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

CNS includes the brain and spinal cord.

Somatic neural system is classified into sympathetic and parasympathetic systems

None

The muscles responsible to move the eye ball are the

2 oblique and 4 recti muscles

2 recti and 2 oblique muscles

2 recti and 4 oblique muscles

4 recti and 4 olique muscles

None

Find out the incorrect statement.

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

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

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

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

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

ANS - Transmission of impulses from the CNS to voluntary organs

PNS - Transmission of impulses to and from the CNS

None

Select the correct option:

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

Gap

Occluding

Tight

Adhering

None

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.

Peripheral; Central

Parasympathetic; Sympathetic

Sympathetic; Parasympathetic

Autonomic; Somatic

None

The direction of light striking the retina will be-

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

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

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

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

None

Which statement is incorrect regarding cerebral cortex?

It shows prominent fields

Large area of cortex neither clearly sensory nor motor

Fibres of tract in cortex are covered with myelin sheath3

It consists of grey matter

None

10.

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

Involuntary actions

Reflex actions

Autonomic actions

Voluntary actions

None

11.

The parasympathetic division of the autonomic nervous system:

all of the above

is concerned with conserving and restoring energy H

arises from the cranial and sacral spinal cord segments

has ganglia near or within visceral effectors

None

12.

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

Increases heart beat

Is a craniosacral division of the autonomic nervous system

Has ganglia near the spinal cord

Prepares the person for fight or flight

None

13.

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

It is commonly found in autonomous and somatic neural system

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

All the above

It is found in spinal and cranial nerves

None

14.

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

1 and 2

1 and 3

3 and 4

None

15.

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?

Pons

Cerebellum

Medulla oblongata

Cerebrum

None

16.

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

Vitreous humour

Aqueous humour

Pupil

Lens

None

17.

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

a, b, d

b, c, d

a, b, c

a, c, d

None

18.

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 and 3 are correct but 4 is wrong.

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

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

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

None

19.

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

motor cortex

prefrontal cortex

somatosensory cortex

visual cortex

None

20.

Select the correct statement regarding the Schwann cells.

Form basement membrane of epithelium.

Surround axon of myelinated nerve fibre

Support muscle fibres

Found in Haversian system of bones

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