Assertion: Ear is a stato Acoustic organ.
Reason: Ear is related to hearing & balance.
An action potential for a given axon is:
1. different in size each time it occurs
2. always the same size
3. larger when the information is to be carried faster
4. smaller when information goes to a gland rather than a muscle
Area of the brain, most involved in maintaining the body's homeostasis, is:
1. medulla oblongata
2. cerebellum
3. pons
4. hypothalamus
Cerebral aqueduct passes through the:
1. Mid brain
2. Diencephalon
3. Hind brain
4. Spinal cord
Assertion: Neural signals through the parasympathetic nerves can increase the cardiac output.
Reason: Parasympathetic neurons stimulation can increase the activities of SA node and strength
of ventricular contraction.
Which of the following statements is correct?
1. | Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye. |
2. | Cornea is an external, transparent and protective proteinaceous ring of the eyeball |
3. | Cornea consists of dense connective tissue of elastin and can repair itself |
4. | The Cornea is convex, transparent layer which is highly vascularised |
Vertebrate brain differentiates from:
1. endoderm
2. mesoderm
3. ectoderm
4. blastoderm
The junction between the axon of one neuron and the dendrite of the next is called:
1. junction point
2. a synapse
3. a joint
4. constant bridge
Which cranial nerve has the highest number of branches?
1. Facial nerve
2. Trigeminal
3. Vagus nerve
4. None of these
In the central nervous system, myelinated fibres form the............., while the non-myelinated fibre cells form the.................... .
1. Grey matter, white matter
2. White matter, grey matter
3. Ependymal cells, neurosecretory cells
4. Neurosecretory cells, ependymal cells