Animal Physiology MCQs Part 9

1) Sarcolemma is a membrane found over the
a) Nerve fibre
b) Cardiac muscle
c) Skeletal muscle fibre
d) Heart

2) The ensheathing of muscle is called
a) Fascia
b) Peritoneum
c) Ligament
d) Tendon

3) The joint between the sternum and ribs is
a) hinge
b) cartilaginous
c) fibrous
d) angular

4) The zygomatic bone is found in the
a) pelvic girdle
b) pectoral girdle
c) skull
d) sternum

5) Myoglobin is found in
a) white fibres
b) red fibres
c) can be traced in both
d) cardiac muscles only

6) The suspensory ligament is present in the
a) eye
b) ear
c) brain
d) kidney

7) Cardiac muscles are different from skeletal muscles as
a) they are striated and involuntary
b) they are non striated
c) they are smooth
d) they are voluntary

8) Classification of protozoa has been done on the basis of their
a) nucleus
b) locomotory organelles
c) contractile vacuole
d) storage product

9) The biceps is attached to the
a) humerus
b) ulna
c) femur
d) scapula

10) The connective tissue which connects two bones is a
a) ligament
b) tendon
c) both
d) none of these

11) Haversian canals are present in
a) bone marrow
b) Hyaline cartilage
c) Bone matrix
d) Calcified cartilage

12) The muscles associated with the heart of insects are
a) alary
b) radial
c) striped
d) pericardial

13) An animal which has a notochord throughout its life is
a) fish
b) Amphioxus
c) Bird
d) Snake

14) The lateral rectus muscle is supplied by the
a) abducens
b) optic
c) oculomotor
d) trochlear

15) Turbinal bones can be traced in the
a) trachea
b) larynx
c) nasal passages
d) pelvic girdle

16) The epiphysial plate helps in the
a) formation of bone
b) elongation of bone
c) thickness of bone
d) all of these

17) The number of cervical vertebra in mammals is
a) 5
b) 6
c) 7
d) 11

18) The protein present in cartilage is
a) chondrin
b) casein
c) cartilagin
d) collagen

19) Tube feet are the locomotory organs of
a) starfish
b) jellyfish
c) crayfish
d) silverfish

20) The centrum of a typical vertebra of an amphibian tissue is transformed into bone. This is
a) endochondrial ossification
b) intermembranous ossification
c) calcification
d) none of the above

21) The number of vertebrae found in man is
a) 26
b) 31
c) 33
d) 46

22) Pneumatic bones are expected to be found in the
a) house lizard
b) pigeon
c) flying fish
d)

23) When a muscle bends one part of the body upon another it is called a
a) extensor
b) flexor
c) abductor
d) regulator

24) The number of floating ribs in the human body is
a) 6 pairs
b) 5 pairs
c) 3 pairs
d) 2 pairs

25) A greenstick fracture is one in which the
a) bone is incompletely broken
b) bone is completely broken
c) either of the above
d) none of the above

26) The pairs
of ribs are called

a) true ribs
b) false ribs
c) floating ribs
d) none of the above

27) The protoplasmic segments of a striated muscle fibre are termed as
a) metamere
b) neuromere
c) sarcoplasm
d) sarcomere

28) Cardiac muscle rests during
a) atrial diastole
b) atrial systole
c) ventricular diastole
d) ventricular systole

29) Bones contain blood cells in their
a) canaliculi
b) marrow cavity
c) haversian canals
d) none of these contain bloods cells

30) During muscle contraction, energy is provided by
a) phosphagen
b) ATP
c) Acetyl-CoA
d) AMP

31) The elbow joint is a
a) pivot joint
b) hinge joint
c) gliding joint
d) none of the above

32) During muscle contraction actin and myosin form
a) actoplasm
b) myoplasm
c) actomyosin
d) plastosine

33) Which of the following components is a part of the pectoral girdle?
a) glenoid cavity
b) ilium
c) sternum
d) acetabulum

34) In which of the following animals is milk squirted down the throat of
the baby by the muscular contraction of the mother?

a) camel
b) Bear
c) Rhinoceros
d) Whale

35) The type of joint between the human skull bones is
a) fibrous joint
b) synovial joint
c) cartilaginous joint
d) hinge joint

36) Which of the following is made up of a single bone in mammals?
a) Hyoid
b) Upper jaw
c) Lower jaw
d) Zygomatic arch

37) The contractile element present in a striated muscle fibril between
two successive Z-lines is called

a) sarcoplasm
b) sarcosomes
c) sarcomere
d) all of these

38) Cartilage is formed by
a) osteoblasts
b) fibroblasts
c) chondrocytes
d) osteoclasts

39) Which one of these is a voluntary muscle?
a) smooth
b) striated
c) cardiac
d) all of the above

40) A peripheral locomotion of the nucleus is the characteristic of
a) skeletal muscle fibres
b) cardiac muscle fibres
c) smooth muscle fibres
d) hard muscle fibres

41) The bones of bird are
a) hollow and heavy
b) solid but light
c) hollow and light
d) like iron rods

42) Wrist bones are
a) tibia
b) fibula
c) carpals
d) humerus

43) Ths skeleton of sponges is formed by
a) cartilage
b) ossein
c) spicules and spongin fibre
d) none of the above

44) In rabbit the ribs protect the
a) heart and lungs
b) lungs, heart , stomach
c) uterus
d) none of the these

45) Myoglobin is found in
a) muscles
b) blood
c) bone marrow
d) all

46) Light and dark bands form a regular pattern along
a) all muscle fibre
b) only smooth cardiac muscle fibres
c) skeletal and cardiac muscle fibres
d) skeletal and smooth muscle fibres

47) The cardiac muscles are
a) striated
b) unstriated
c) voluntary
d) antagonistic

48) Which of the following has no skeleton?
a) Butterfly
b) Sponge
c) Jelly-fish
d) Star-fish

49) The odontoid process is found in vertebrae
a)
b)
c)
d)

50) The pseudopodia in amoeba help in
a) feeding
b) walking
c) both (a) and (b)
d) none

51) The roof of the cranium in frogs is made of
a) parasphenoid
b) alisphenoid
c) frontoparietals
d) pterygoid

52) Which of the following bones in the frog’s skull is Y-shaped?
a) Pterygoid
b) Palatine
c) Squamosal
d) Parasphenoid

53) The contraction and relaxation phases of a muscle constitute one
a) beat
b) twitch
c) condition
d) stimulus

54) The patella is the
a) thigh bone
b) knee cap
c) back-bone
d) none of these

55) Pseudopodial locomotion is found in
a) Amoeba
b) Euglena
c) Paramecium
d) All of these

56) The Haversian canals present in long bones contain
a) the artery and vein
b) the nerve and lymphatic vessel
c) all of the above
d) none above

57) The major constituent of the adult femur bone is
a) calcium phosphate
b) calcium magnesium phosphate and calcium carbonate
c) calcium carbonate
d) sodium chloride

58) The neurocyton is located
a) inside the brain
b) inside the spinal cord
c) outside the spinal cord
d) white matter

59) The Schwann cell is part of the
a) excretory system
b) nervous system
c) respiratory system
d) nervous and muscular

60) During the activation of a nerve the impulse is conducted in a fibre by
a) more movement of sodium ions towards the inside and potassium ions outside
b) less sodium coming out and more potassium coming in
c) equal movement of both ions
d) more movement of potassium ions towards inside and sodium ions outside

61) In a human being, the number of cranial nerves are
a) 6 pairs
b) 20 pairs
c) 10 pairs
d) 12 pairs

62) ANS is not involved in
a) heart beat
b) control of viscera
c) micturition
d) learning and memory

63) An axon is characterized by
a) conduction of the nerve imulse
b) transformation of energy
c) receiving the impulse
d) providing energy for impulse

64) In a human being the number of spinal nerves are
a) 10 pairs
b) 6 pairs
c) 31 pairs
d) 12 pairs

65) The cranial nerves which control the movement of the eyeball are
a) 4, 6 and 7
b) 3,4 and 6
c) 2,3 and 5
d) 5,8 and 9

66) Which one of the following is a purely sensory nerve?
a) Trigeminal nerve
b) Vagus nerve
c) Oothetic nerve
d) Auditory nerve

67) Which two extra cranial nerves are present in amniotes?
a) Laryngeal and hypoglossal
b) Spinal accessory and hypoglossal
c) Hypoglossal and facial
d) Trigeminal and glossopharyngeal

68) The mammalian brain differs from an amphibian brain in possessing a/an
a) olfactory lobe
b) cerebellum
c) hypothalamus
d) corpus callosum

69) Conditioned reflexes are different from unconditioned reflexes in that
a) conditioned reflexes are limited to the brain
b) unconditioned reflexes are limited to the brain
c) both
d) none of the above

70) Which one of the following is a spinal nerve?
a) hypoglossal
b) trigeminal
c) olfactory
d) none of these

71) Which one of the following acts as a slow neurotransmitter?
a) GABA
b) Adrenaline
c) Epinephrine
d) Acetycholine

72) Saltatory conduction occurs in
a) myelinated nerve fibres
b) non-myelinated nerve fibres
c) both
d) none of the above

73) Which cranial nerve regulates the heart muscle?
a) Facial
b) Vagus
c) Auditory
d) Trochlear

74) Secretion of which of the following is under neurosecretory nerve axons?
a) pineal
b) adrenal cortex
c) anterior pituitary
d) posterior pituitary

75) Sound reception can be interpreted by the
a) olfactory lobe
b) cerebral hemisphere
c) cerebellum
d) medulla oblongata

76) The cavities of the brain are called
a) auricles
b) coelom
c) ventricles
d) lumen

77) The weakest current strength that can excite a tissue is called the
a) chronaxie
b) rheobase
c) saltatory
d) reflex arc

78) Arbor vitae is mainly composed of
a) grey matter
b) neuroglial cells
c) white matter
d) all of these

79) The cell bodies (soma) of motor nerves is situated in the
a) dorsal root of spinal cord
b) dorsal horn of spinal cord
c) ventral and lateral horn of spinal cord
d) ventral root of spinal nerve

80) Which chemical is released by the vagus nerve to slow down the heart beat?
a) Adrenalin
b) Acetycholine
c) Norepinephrine
d) Epinephrine

81) Sympathetic nerves in mammals arise from the
a) sacral region
b) cervical region
c) thoraco-lumbar region
d)

82) When light intensity changes from one to hundred units, the response of the eye will be increased by
a) 2
b) 10
c) 100
d) 001

83) The chemical substance released in a synapse during the transmission of an impulse is
a) aceto-acetic acid
b) adenine
c) acetic acid
d) acetylcholine

84) In the development of the human body, the ectoderm is responsible for the formation of
a) sweat glands
b) nervous glands
c) lens of the eye
d) all of these

85) The ventricles of the cerebral hemisphere communicate through the
a) foramen magnum
b) foramen opali
c) foramen of Monro
d) optic foramen

86) Which of the following animal has a false nervous system but no brain?
a) Hydra
b) Amoeba
c) Cockroach
d) Earthworm

87) granules
are absent in the

a) dendrite
b) cyton
c) axon
d) both a and b

88) The vagus nerve is the …… cranial nerve
a)
b)
c)
d)

89) Salivation in mammals is under the control of the
a) medulla oblongata
b) mesencephalon
c) hypothalamus
d) cerebellum

90) Nerve fibres transmit the nerve message by means of … signals:
a) chemical
b) physical
c) electrochemical
d) electrical

91) The brain component regulating the temperature of the body is the
a) hypothalamus
b) pituitary
c) medulla
d) cerebellum

92) By which nervous system and of what type is the blood supplied into
the visceral organs?

a) sympathetic nervous system, involuntary
b) sympathetic nervous system, voluntary
c) Both SNS and PNS, involuntary
d) Para-sympathetic nervous system, involuntary

93) The potential difference between the inside and outside of a neuron before
excitation is known as the

a) resting potential
b) action potential
c) spike potential
d) reaction potential

94) The heart is innervated by the
a) trigeminal
b) vagus nerve
c) glossopharyngeal
d) facial

95) Structures typically represented in every segment of the earthworm are
a) ganglia
b) lateral hearts
c) genital ducts
d) septal nephridia

96) Which of the following is part of the mid brain of a rabbit/
a) Diencephalon
b) Cerebrum
c) Corpora quadrigemina
d) None of these

97) The parasympathetic nerves in mammals arise from the
a) thoraco-lumbar nerves
b) cervical nerves
c) sacral nerves
d)

98) The
cranial nerves are

a) optic, facial and spinal nerves
b) oculomotor, trigeminal and spinal
c) occulomotor, abducens and spinal accessory
d) trochlear, abducens and vagus

99) The corpus callosum is a bridge of nerve fibres which connects the
a) two cerebral hemispheres
b) two cerebellar hemispheres
c) cerebrum to the cerebellum
d) none of the above

100) Respiration is controlled by the
a) cerebellum
b) medulla oblongata
c) olfactory lobes
d) hypothalamus

Answers

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