Hindbrain

The Hindbrain consists of what 3 Structures?

• Cerebellum

• Pons

• Medulla Oblongata

The Hindbrains main role is?

• Control Vital Body Systems

• Not under Conscious Control

The Cerebellum accounts for what % of Brain and what % of Total Neurons

• 10% of Brain Mass

• 50% of all Neurons

What is the Main Function of the Cerebellum?

• Fine Motor Control

• Walking, Coordination & Balance

The cerebellum receives sensory input from the prop…?

• The proprioceptors Of Joints, Tendons & Muscle

What are Proprioceptors?

• Sensory Neurons that inform the body of where the Body is and Movement.

The Cerebellum operates through what neurons?

• Purkinje Fibers

The pons plays significant roles in?

• Breathing

• Motor Control of Face

• Hearing & Balance

Within Pons what does the Cranial Nerve Trigeminal (V) do?

• Receives Sensory Info from the Cornea, Skin of Nose, Inside of Mouth

Within Pons what does the Cranial Nerve Abducens (VI) do?

• Controls movement of the Lateral Rectus of the Eyeball

Within Pons what does the Cranial Nerve Facial (VII) do?

• Facial Expressions

• Sense of Taste

Within Pons what does the Cranial Nerve Vestibulocochlear (XI) do?

• Hearing & Position of the Head

• (EQUILIBRIUM)

What 2 Centres does Pons contain?

• 2 Respiratory Centres

• Apneustic and Pneumotaxic

The Apneustic and Pneumotaxic centres communicate with the ?

• Medulla Oblongata to control Respiratory Drive

The medulla oblongata is the most inferior part…

• Part of the Brain and Unites with the Spinal Cord

The vasomotor centre → controls ?

• Autonomic Innervation of Blood Vessels

Cardiac control centre → regulates?

• Autonomic control of the Heart

Respiratory rhythmicity centre → communicates?

• With Pons to control breathing

Glossopharyngeal (IX) of the Medulla does what?

• Controls Pharynx

Vagus (X) of the Medulla does what?

• Innervates the Viscera of the Abdomen

Accessory (XI) of the Medulla does what?

• Detects Movement and Control of Head. Neck & Shoulders.

Hypoglossal (XII) of the Medulla does what?

• Detects and Controls movement of the Tongue.

Brainstem Diagram