Anatomy Nervous System

Spinal nerves and cranial nerves

Peripheral Nervous System (PNS) composed of

CNS and PNS

Nervous system broken into 2 parts

brain and spinal cord

Central Nervous System (CNS) composed of

Dendrites

What is A?

Cell Body/Soma

What is B?

Nucleus

What is C?

Axon hillock

What is D?

Myelin sheath

What is E?

Node of Ranvier

What is F?

Axon terminal

What is G?

Axon

What is H?

Myelinated axon

Unmyelinated axon

Giant multipolar neuron

Giant multipolar neuron

Spinal cord

Spinal cord

Spinal cord

Spinal cord

Multipolar neuron

Bipolar neuron

Unipolar neuron

Capillary

What is A?

Astrocyte

What is B?

Oligodendrocytes

What is C?

Microglia

What is D?

Ependymal cells

What is E?

Ventricle of the brain

What is F?

Oligodendrocyte

Astrocytes

Microglia

Ependymal cells

Satellite cells

What is A?

Cell body

What is B?

Myelin sheath

What is C?

Schwann cell

What is D?

Axon

What is E?

Schwann cell nucleus

What is G?

Axon

What is F?

Central nervous system, peripheral nerves, skeletal muscles

Acetylcholine is found where?

Norepinephrine and epinephrine

What is produced in adrenal gland?

Dorsal root

Where sensory signals are passed into the spinal cord

Dorsal root ganglion

Where sensory spinal nerve cell bodies cluster together

Ventral root

Where motor signals from the spinal cord pass through triggering muscle action or gland secretion

Create myelin sheaths in the Central Nervous System

Oligodendrocytes

Create myelin sheaths in peripheral nervous system

Schwann cells

Produce CSF

Ependymal cells

Provide immune system support by removing pathogens through the blood brain barrier

Microglia

Create blood brain barrier and connect to nutrient rich capillaries

Astrocytes

Thick outer layer of meninges

Dura mater

Cerebrum

Cerebellum

Diencephalon

Midbrain

Pons

Medulla oblongata

Midbrain

Pons

Medulla oblongata

Lateral ventricles

Third ventricle

Fourth ventricle

Cavity inside brain which are filled with cerebrospinal fluid

Ventricle

Absorbs impact and exchanges nutrients and wastes with the bloodstream. Circulates through ventricles into meninges and spinal cord

CSF

3 parts of the brain stem

Midbrain, pons, medulla oblongata

Regulate autonomic functions like breathing and heartbeat

Medulla oblongata

Respiratory control, sleep and arousal

Pons

Midbrain

Superior colliculi, midbrain

Inferior colliculi

Auditory reflexes

Function of inferior colliculi

Visual reflexes

Function of Superior colliculi

Balance, posture, fine tunes body movements

Cerebellum function

Anterior lobes, cerebellum

Posterior lobes, cerebellum

Vermis

Arbor vitae

Cerebellar peduncles, cerebellum

Hypothalamus, diencephalon

Thalamus, diencephalon

Pineal gland, diencephalon

Plays role in learning and memory, pass sensory information to different regions of the cerebral cortex, determines what sensory information is important enough to send to cerebral cortex for conscious awareness

Thalamus

Homeostasis
Regulate autonomic nervous functions, eating, drinking, emotions, circadian rhythms, body temperature, produce hormones that influence the pituitary gland and regulate endocrine functions

Hypothalamus

Pituitary gland

Activated by hypothalamus, regulates endocrine functions

Pituitary gland

Basal ganglia

Processes sensory and motor information; higher-level thinking

Cerebral cortex

Control movement, coordination, and muscle tone

Basal ganglia

Frontal lobes

Parietal lobes

Temporal lobes

Occipital lobes

Precentral gyrus

Postcentral gyrus

Central sulcus

Lateral sulcus

Frontal lobe

What is A?

Primary motor area

What is B?

Premotor area

What is C?