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Q. No.How many of the given statements regarding the anatomy of frogs are correct?
A:
Kidneys are situated a little posteriorly in the body cavity on both sides of the vertebral column.
B:
Each kidney is composed of several structural and functional units called uriniferous tubules or nephrons.
C:
Two ureters emerge from the kidneys in male frogs, where the ureters act as urinogenital ducts that open into the cloaca.
D:
In females, the ureters and oviduct open separately in the cloaca.
1.
1
2.
2
3.
3
4.
4
Subtopic: Frogs: Anatomy (Excretory System) |
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The thin-walled urinary bladder in frog is present:
| 1. | ventral to the rectum which does not open in the cloaca. |
| 2. | ventral to the rectum which also opens in the cloaca. |
| 3. | dorsal to the rectum which does not open in the cloaca. |
| 4. | dorsal to the rectum which also opens in the cloaca. |
Subtopic: Frogs: Anatomy (Excretory System) |
85%
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Subtopic: Frogs: Anatomy (Nervous System) |
88%
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The mid brain of frog is characterised by:
| 1. | a pair of olfactory lobes |
| 2. | paired cerebral hemispheres |
| 3. | unpaired diencephalon |
| 4. | a pair of optic lobes |
Subtopic: Frogs: Anatomy (Nervous System) |
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Unlike human brain, which of the following structure is not a feature of a frog’s brain?
| 1. | Cerebellum | 2. | Pons varolii |
| 3. | Medulla oblongata | 4. | Olfactory lobes |
Subtopic: Frogs: Anatomy (Nervous System) |
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The nervous system of a frog is organised into:
| I: | central nervous system | brain and spinal cord |
| II: | peripheral nervous system | cranial and spinal nerves |
| III: | autonomic nervous system | sympathetic and parasympathetic |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Frogs: Anatomy (Nervous System) |
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The forebrain of frog does not include:
| 1. | olfactory lobes | 2. | cerebral hemispheres |
| 3. | diencephalon | 4. | cerebellum |
Subtopic: Frogs: Anatomy (Nervous System) |
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The opening in the skull of the frog through which the medulla oblongata passes out and continues into the spinal cord is called as:
| 1. | Foramen ovale | 2. | Foramen spinosum |
| 3. | Foramen magnum | 4. | Obturator foramen |
Subtopic: Frogs: Anatomy (Nervous System) |
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Which of the following sense organs in frogs are well-organised structures rather than cellular aggregations around nerve endings?
| I: | Sensory papillae for touch |
| II: | Taste buds |
| III: | Nasal epithelium |
| IV: | Eyes |
| V: | Tympanum with internal ears |
| 1. | Only I, II and III | 2. | Only IV and V |
| 3. | Only II, IV and V | 4. | Only IV |
Subtopic: Frogs: Anatomy (Nervous System) |
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Eyes in a frog:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | are situated in the orbit in skull. |
| II: | are compound eyes possessing a large number of units. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Frogs: Anatomy (Nervous System) |
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