Limbic system includes
Thalamus, hypothalamus, amygdala, mammillary body and hippocampus nuclei
Key Terms
Limbic system includes
Thalamus, hypothalamus, amygdala, mammillary body and hippocampus nuclei
What is corpora quadrigemina?
4 optic lobes of mammalian brain
What are the four optic lobes?
2 superior colliculi
| 2 inferior colliculi
Which optic lobes are related to visual relex?
2 superior colliculi
Which optic lobes are related to auditory reflex?
2 inferior colliculi
Basal ganglia is
Subcortical nuclei at base of brain
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| Term | Definition |
|---|---|
Limbic system includes | Thalamus, hypothalamus, amygdala, mammillary body and hippocampus nuclei |
What is corpora quadrigemina? | 4 optic lobes of mammalian brain |
What are the four optic lobes? | 2 superior colliculi | 2 inferior colliculi |
Which optic lobes are related to visual relex? | 2 superior colliculi |
Which optic lobes are related to auditory reflex? | 2 inferior colliculi |
Basal ganglia is | Subcortical nuclei at base of brain |
Which is the largest nuclei of the basal ganglia? | Corpus striatum |
What is the neurotransmitter of basal ganglia? | Dopamine |
What has the subconcious control over the contraction of voluntary skeletal muscles? | Basal ganglia |
What surrounds the aqueduct of sylvius? | Mid brain |
What connects cerebrum to cerebellum? | Pons varolli |
Peristalsis is controlled by which part of brain? | Medulla oblongata |
Brain stem constitutes | Mid brain, medulla oblongata, pons |
What is called the gateway to consiousness? | Reticular activating system |
What is arbor vitae? | White matter in form of tree branching in cerebellum |
What is crura cerebri? | Nerve tract of midbrain |
Which part of brain converts short term memory to long term memory? | Hippocampus |
What is the location of spinal cord? | Inside neural canal between vertebrae |
What are the two swellings in spinal cord? | Cervical and lumbar |
What is conus medullaris? | Posterior neural end of spinal cord |
What is filum terminade? | Non nervours posterior extension of spinal cord |
What is the tail like collection of roots of spinal nerves at posterior end called? | Cauda equina |
Which cells line the central canal of spinal cord? | Ependymal cells |
Which part of brain controls emotions? | Amygdala |
Filum terminade is made of | Piamater |
How many spinal nerves are present in humans? Give the spinal formula | 31 | C8 T12 L5 S5 Cd1 |
What type of nerves are spinal nerves? | Mixed nerves |
Dorsal root of spinal cord arises from | Dorsal horn |
Ventral root of spinal cord arises from | Ventral horn |
Which fibres are present in the dorsal root of spinal cord? | Sensory fibres |
Which nerve fibres are present in the ventral root of spinal cord? | Motor nerve fibres |
Dorsal root ganglion cell bodies are present in | Dorsal root of spinal cord |
Ventral root ganglion cell bodies are present in | Grey matter of spinal cord |
How many cranial nerves are present in amphibians? | 10 |
How many cranial nerves are present in reptiles? | 12 |
How many cranial nerves are present in birds? | 12 |
Name all 12 cranial nerves in order | Olfactory nerve I Optic nerve II Occulomotor nerve III Trochlear nerve IV Trigeminal nerve V Abducens nerve VI Facial nerve VII Auditory nerve VIII Glossopharyngeal nerve IX Vagus nerve X Spinal accessory nerve XI Hypoglossal nerve XII |
Which is the I (first) cranial nerve? | Olfactory nerve |
Which is the II cranial nerve? | Optic nerve |
Which is the III cranial nerve? | Occulomotor nerve |
Which is the IV cranial nerve? | Trochlear nerve |
Which is the V cranial nerve? | Trigeminal nerve |
Which is the VI cranial nerve? | Abducens nerve |
Which is the VII cranial nerve? | Facial nerve |
Which is the VIII cranial nerve? | Auditory nerve |
Which is the IX cranial nerve? | Glossopharyngeal nerve |
Which is the X cranial nerve? | Vagus nerve |
Which is the XI cranial nerve? | Spinal accessory nerve |
Which is the XII cranial nerve? | Hypoglossal nerve |
Which cranial nerves are sensory nerves? | I, II, VIII |
Which cranial nerves are motor nerves? | III, IV, VI, XI, XII |
Which cranial nerves are mixed nerves? | V, VII, IX, X |
Which is the longest cranial nerve? | Vagus nerve |
Which is the shortest cranial nerve? | Abducens nerve |
Which is the largest cranial nerve? | Trigeminal nerve |
Which is the thinnest cranial nerve? | Trochlear nerve |
What is the function of occulomotor nerve? | Movement of superior rectus, inferior rectus, medial rectus, inferior oblique muscles |
Where does the occulomotor nerve originate? | Midbrain |
What is the function of trochlear nerve? | Eye rotation- superior oblique muscle |
Where does the trochlear nerve originate? | Midbrain |
What is the function of trigeminal nerve? | Sensations from conjunctiva, eyelids, lacrimal glands, cheeks, upper and lower lips, jaw movement |
What are the three major branches of trigeminal nerve? | the ophthalmic nerve (V1), the maxillary nerve (V2) and the mandibular nerve (V3) |
Which cranial nerve is called dentist's nerve? | Trigeminal nerve |
Abducens nerve arises from | Pons |
What is the function of abducens nerve? | Eye rotation, lateral rectus |
Facial nerve arises from | Pons |
Auditory nerve arises from | Pons |
Glassopharyngeal nerve arises from | Medulla |
Vagus nerve arises from | Medulla |
Which nerve is responsible for speech, swallowing, peristalsis, heart rate, etc? | Vagus nerve |
Which nerve controls the muscle of tongue? | HYpoglossal nerve |
Spinal accessory nerve arises from | Medulla |
Hypoglossal nerve arises from | Medulla |
Which scientists conducted bell dog experiment? | Ivan pavlov |
Which part of autonomous nervous system works under stress? | Sympathetic nervous system |
What is the neurotransmitter of sympathetic nervous system? | Adrenaline |
How many sympathetic ganglion are present in the body? | 21 | 3 cervical, 12 thoracic, 5 lumbar, 1 saccral |
What is the neurotransmitter of parasympathetic nervous system? | Acetyl choline |
Which part of autonomous nervous system has thoraco lumbar outflow? | Sympathetic nervous system |
Which part of autonomous nervous system has cranio-sacral outflow? | Parasympathetic nervous system |
Where is sympathetic nervous system located? | Near spinal cord |
Where is parasympathetic nervous system located? | Near organs |
The pre ganglionic fibre is shorter in which- sympathetic or parasympathetic nervous system? | Sympathetic nervous system |
The post ganglionic fibre is shorter in which-sympathetic or parasympathetic nervous system? | Parasympathetic nervous system |
Out of sympathetic and parasympathetic nervous system, which works on mode of conserving energy? | Parasympathetic nervous system |
Which nervous system makes the pupil of eye dilate? | Sympathetic nervous system |
Which nervous system increases salivation? | Parasympathetic nervous system |
Which nervous system increase blood pressure? | Sympathetic nervous system |
Which nervous system causes dilation of bronchi and trachea? | Sympathetic nervous system |
Which nervous system causes contraction of anal sphinctre? | Sympathetic nervous system |
Basket nerve endings are present at | Root of hair follicles |
Merkel's disc is located in | Epidermis |
Merkel's disc senses | Touch |
Meissner's corpuscles are present in | Dermis |
Meissner's corpuscles sense | Deep touch |
Pacinian corpuscle are present in | Deep dermis |
Pacinian corpuscles sense | Pressure |
Which thermoreceptors sense warmth? | Caloreceptors |
Which thermoreceptors sense cold? | Frigidoreceptor |
Which muscle of eye helps in upward movement? | Superior rectus |