Cell types lab

What do neurons do?

Send the signals

What do neuroglia do?

Support neurons

What is black?

Cell body

What is purple?

Nucleus

What is green?

Dendrites

What is blue?

Myelin sheath

What is yellow?

Node of Ranvier

What is red?

Axon

What is grey?

Schwann’s cells

What is orange?

Axon terminals

What is the most abundant CNS neuroglia?

Astrocytes

Astrocytes

Support developing neurons and synaptic junctions

Protect neurons from harmful substances in blood

Microglial cells

Defensive cells in CNS; monitor neuron health; act as the phagocyte of the nervous tissue

Ependymal

Form permeable barrier between central canal and nervous tissue

Circulate the cerebrospinal fluid of the brain and spinal cord

Where is the ependymal?

Lines central cavities of brain and spinal cord

Oligodendrocytes (CNS)

Produce myelin sheath of CNS

Satellite cells (PNS)

Surround neuron cell bodies

Schwann cells (PNS)

Form myelin sheath of PNS; nerve regeneration

What is A?

Longitudinal fissure

What is b?

Precentral gyrus

What is c?

Central fissure

What is d?

Post central gyrus

What is A?

Brain stem

What is B?

Midbrain

What is C?

Pons

What is D?

Medulla

What is 1?

Corpus callosoum

What is 2?

Cerebellum

What is 3?

Arbor vitae

What is number 1?

Fornix

What is 2?

Fourth ventricle

What is 3?

Inferior colliculus

What is 4?

Superior colliculus

What is 5?

Lateral ventricle (space)

What is 6?

Mimillary body

What is 7?

Medulla

What is 13?

Pineal gland

What is 14?

Pons

What is 15?

Spinal cord

What is 16?

Superior colliculus

What is 17?

Thalamus

What is 18?

Hypothalamus

Subdivision of the nervous system involves motor responses that are voluntary or conscious in nature

Somatic nervous system

This primary division of the nervous system is composed of the cranial nerves and spinal nerves

Peripheral nervous system

This subdivision of the nervous system often called the “brain of the gut” involves involuntary responses of the GI tract such as peristalsis

Enteric nervous system

This primary division of the nervous system is composed of the brain and spinal cord

Central nervous system (CNS)

This subdivision of the nervous system, made of the sympathetic and parasympathetic nervous system, involves involuntary motor responses meaning that they are not consciously controlled

Autonomic nervous system

This type of neuron conveys sensory information from sensory receptors to the CNS

Sensory neuron

This type neuron relays impulses from the CNS to effector organs, muscles, or glands

Motor neuron

This type of neuron, found in the CNS, bridge the gap between sensory and motor neurons

Interneurons

This nerve functions as a sensory nerve in hearing and balance

Vestibulocochlear nerve (VIII)

This nerve functions as a sensory nerve in the sensation of smell

Olfactory nerve (I)

This nerve functions in the sensation of the face and supply motor function to the chewing muscles

Trigeminal nerve (V)

This nerve functions in supplying sensory information relating to vision

Optic nerve (II)

This nerve functions in supplying motor function for four of the extrinsic muscle of the eyeball

Oculomotor nerve (III)

This nerve is the only one that extends beyond the head and neck and supplies motor sensory information to the viscera of the abdomen and thorax

Vagus nerve (X)

What are the sensory nerves?

Olfactory, optic, and vestibulocochlear

What are the motor nerves?

Oculomotor, trochlear, Abducens, spinal accessory, and hypoglossal

What nerves are both motor and sensory?

Trigeminal, facial, vagus, and glossopharyngeal