Hindbrain.

Hindbrain

where the spinal cord meets the brain;

Lowest part

Medulla, Pons, Cerebellum

3 parts of the posterior part of the brain

Brain Stem

Made up of:

• Medulla & Pons

• Midbrain

• Certain Structures of Telencephalon

Medulla

helps control vital reflexes through the cranial nerves

Vital Reflexes

• breathing

• Heart rate

• Vomiting

• Salivation

• Coughing & Sneezing

Anterior, Ventral

The pons lie _____ and ______ to the medulla.

Pons

Contains the nuclei of some cranial nerves, as well as bridge axons

Bridge Axons

Axons in the pons; cross from 1 side to the other

Cerebellum

involved in:

• movement

• motor coordination

• balance

• processing visual & auditory stimuli

Cranial Nerves

control sensation and movement in the head. located in the medulla.

12

Number of Cranial Nerves in the Medulla

I. Olfactory

Cranial nerve; processes:

• smell

II. Optic

Cranial nerve; processes:

• vision

III. Oculomotor

Cranial nerve; processes:

• Eve movements

• Pupil constriction

IV. Trochlear

4th Cranial nerve; processes:

• eye movements

V. Trigeminal

Cranial nerve; processes:

• Skin sensations from face

VI. Abducens

6th Cranial nerve; processes:

• Eye movements

VII. Facial

Cranial nerve; processes:

• Taste, from anterior ⅔ rd of tongue

• Facial expression

• Salivation

VIII. Statoacoustic

Cranial nerve; processes:

• Hearing

• Equilibrium

IX. Glossopharyngeal

Cranial nerve; processes:

• Taste from posterior ⅓ rd of tongue

• Swallowing

• Throat movements during speech

X. Vagus

Cranial nerve; processes:

• Sensations from neck

• Nerves of stomach & intestines

• Control of organs:

  • throat,

  • esophagus,

  • larynx

  • parasym

XI. Accessory

Cranial nerve; processes:

• Neck & shoulder movements

XII. Hypoglossal

Cranial nerve; processes:

• Control of tongue muscles