Nervous system - cranial nerves, Biology

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

Posted Date: 10/3/2012 1:47:07 AM | Location : United States







Related Discussions:- Nervous system - cranial nerves, Assignment Help, Ask Question on Nervous system - cranial nerves, Get Answer, Expert's Help, Nervous system - cranial nerves Discussions

Write discussion on Nervous system - cranial nerves
Your posts are moderated
Related Questions
Q. Explain about eukaryotic organism or Fungi? Fungi are eukaryotic organisms. This means that their DNA-containing chromosomes are enclosed within a nucleus inside their cell

Explain about the Bioavailability of Minerals? Polyphenols can form complexes with metal cations through their carboxylic or hydroxylic groups, and thus interfere with the inte

Soil-Environmental Components The word soil is derived from Latin word 'solum' meaning earthy material in which plants grow. The soil is the consolidated outer layer of the ear

1.  A completely new protein has been synthesized by a research lab. You are inadvertently exposed to it and have an allergic response. What type of antibody initiates this respons

Isolation and identification of the etiological agent: Isolation of the etiological agent is attempted in chicken embryos, cell cultures, laboratory animals, culture medi

Elaborate the internal vascular circulation of an eye. Retinal vessels are derived from central retinal artery and are distributed within the inner two-third of retina. Outer o

Early Pre-operative Care   1. Admission of patient-usual admission procedure to be completed. 2. Assessment of the patient. 3. History 4. Physical examination

Equine encephalomyelitis Encephalomyelitis or inflammation of the brain tissue and the spinal cord, can be brought about by different viruses. Eastern-, Western- and Venezuelan

Q. What is the typical feature of the epithelia? How different is it from the connective tissue? The typical feature of the epithelium is the almost absence or absence of space

Based on your knowledge of neoplasia, discuss biochemical methods of detecting tumors, and imaging characteristics (in your particular imaging modality) that suggest malignancy. Ex