Nervous system - cranial nerves, Biology

Assignment Help:

CRANIAL NERVES

12 pairs. Total weight 12 gms.
Upto amphibian 10 pairs cranial nerves are present.
1, 2, 8, - sensory. 3, 4, 6, 11, 12, motor. 5, 7, 9, 10 - mixed.
3, 7, 9, 10 th attached to ANS also.

S.N. 1.	NO. I	NAME Olfactory	ORIGIN & DISTRIBUTION Olfactory epithelium
2.	II	Optic	Retina
3.	III	Oculomotor	Eye muscle
4.	IV	Pathetic (Trochlear)	Eye muscle
5.	V	(Smallest) Trigeminal (Thickest)
		Dentist Nerve
		In it glassarian ganglion present

		(a) Ophthelmic (b) Maxillary (c) Mendibular	Snout Upper jaw Lower jaw
6.	VI	Abducens (Thinnest)	Eye muscle
7.	VII	Facial
		(a) Palatine	Buccal cavity
		(b) Hyomendibular	Tongue
8.	VIII	(c) Chorda tympani Auditory	Salivary gland
		(a) Vestibular
9.	IX	(b) Cochlear Glossopharyngeal	Ear
		(a) Lingual	Tongue
10.	X	(b) Pharyngeal Vagus (Largest)	Pharynx
		(a) Anterior laryngeal	Larynx
		(b) Cardiac depressor	Heart
		(c) Recurrent laryngeal	Larynx
		(d) Main vagus	Heart, Lungs, Stomach, Intestine
		Also known as pneumogestric
		or wandering nerve.
11.	XI	Accessory Spinal	Muscle of neck & shoulder
12.	XII	Hypoglossal	Tongue & lower jaw

Related Discussions:- Nervous system - cranial nerves

Meaning of cellular secretion, Cell secretion is the elimination to the ext...

Cell secretion is the elimination to the exterior of substances formed by the cell (for example, hormones, mucous, sweat, etc.)

Give the introduction to cardiac rehabilitation, Give the introduction to C...

Give the introduction to Cardiac rehabilitation? Cardiac rehabilitation services are comprehensive, long-term programs involving medical evaluation, prescribed exercise, cardia

Is the bacterium mrsa pathogenic or non-pathogenic, Is the bacterium MRSA p...

Is the bacterium MRSA pathogenic or non-pathogenic? MRSA bacteria are pathogenic. This group of bacteria belongs to Staphylococcus aureus family, which have grown resistant to

Define the term probiotics, Normal 0 false false false ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Bacterial diseases-pigs, Pigs This is a sub-acute or chronic infection ...

Pigs This is a sub-acute or chronic infection manifested by abortion, sterility, high piglet mortality and orchitis in pigs. Br. suis causes brucellosis among pigs. It is morph

Biochemical reactions - nitrate assimilation, Biochemical Reactions - Nitra...

Biochemical Reactions - Nitrate Assimilation Nitrate is the most readily available and preferred source of nitrogen for growth. Assimilatory reduction of NO - 3 to NH 3 is

Nerves - organisation of nervous system, Nerves - Organisation of Nervous S...

Nerves - Organisation of Nervous System Due to the pattern of distribution of neurons as described above, there are bundles of nerve fibers, called nerves, connecting the cent

Duration limit of the qrs, Q. Duration limit of the QRS? The duration o...

Q. Duration limit of the QRS? The duration of the QRS is usually reduced slightly during exercise. Because catecholamines increase conduction velocity in the Purkinje fibers an

Define evolution of virulence, Define Evolution of virulence? Diseases ...

Define Evolution of virulence? Diseases like cholera emerge as sudden outbreaks, showing marked variation via space and time both in their incidence--the number of individuals

Explanation of glomerular filtration, Question 1) Mentioning the 3 diff...

Question 1) Mentioning the 3 different processes in the formation of urine Explanation of Glomerular filtration Explanation of Tubular reabsorption Explanation of T

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages