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

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

Autonomic actions

Reflex actions

Voluntary actions

Involuntary actions

None

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

Pupil

Vitreous humour

Aqueous humour

Lens

None

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.

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

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

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

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

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)

1 and 2

3 and 4

1 and 3

2 and 4

None

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

a, c, d

a, b, c

b, c, d

None

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

motor cortex

somatosensory cortex

visual cortex

prefrontal cortex

None

The direction of light striking the retina will be-

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

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

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

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

None

Select the wrong paired match from the following.

ANS - Transmission of impulses from the CNS to voluntary organs

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

None

The parasympathetic division of the autonomic nervous system:

all of the above

has ganglia near or within visceral effectors

arises from the cranial and sacral spinal cord segments

is concerned with conserving and restoring energy H

None

10.

Choose the correct answer from the alternatives given.

The cervical plexus supplies the:

head, neck, and shoulders

upper extremities

abdominal regions

head and shoulders

None

11.

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

Prepares the person for fight or flight

Has ganglia near the spinal cord

None

12.

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

CNS includes the brain and spinal cord.

Somatic neural system is classified into sympathetic and parasympathetic systems

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

PNS is divided into somatic and autonomic neural systems.

None

13.

Select the correct option:

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

Adhering

Gap

Occluding

Tight

None

14.

Which statement is incorrect regarding cerebral cortex?

Fibres of tract in cortex are covered with myelin sheath3

Large area of cortex neither clearly sensory nor motor

It consists of grey matter

It shows prominent fields

None

15.

The muscles responsible to move the eye ball are the

2 recti and 2 oblique muscles

2 recti and 4 oblique muscles

2 oblique and 4 recti muscles

4 recti and 4 olique muscles

None

16.

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 commonly found in autonomous and somatic neural system

All the above

It is found in spinal and cranial nerves

None

17.

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?

Medulla oblongata

Cerebellum

Cerebrum

Pons

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

Peripheral; Central

Parasympathetic; Sympathetic

Autonomic; Somatic

None

19.

Find out the incorrect statement.

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

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

None

20.

Select the correct statement regarding the Schwann cells.

Surround axon of myelinated nerve fibre

Support muscle fibres

Found in Haversian system of bones

Form basement membrane of epithelium.

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