Integumentary System and Nervous Tissue Flashcards
What is a cell body called?
Soma
Name the 3 components of the axon
Myelin sheath, nodes of ranvier and Schwann cells
What is the myelin sheath composed of and its entomology?
Glial Cells, meaning ‘glue’
Name the 4 components of the neuron body below
Dendrites, axon hillock, axon terminals, and nucleus
Label the layers of the thin skin below from top to bottom
epidermis and dermis
Label the strata and dermis of the thin skin below
stratum granulosum, stratum spinosum, stratum basale, stratum cornuem, and reticular layer of dermis
What are the 2 functions of astrocytes?
Supporting cells for the CNS and component of the blood-brain barrier
What type of glial cell is found in the PNS? What is its function?
Schwann cells, to provide insulation as the myelin sheath
Label the strata of thick skin below
Stratum granulosum, stratum spinosum, stratum basale, stratum corneum, stratum lucidum
What are the 3 components of a synapse?
Presynaptic neuron, synaptic cleft and postsynaptic neuron
What is the name of the chemicals that diffuse across the synaptic cleft?
Neurotransmitters
Difference between unipolar, bipolar and multipolar neurons?
The number of processes extending from the cell body
(axon and dendrite(s))
Name the sub-layers of the dermis in thick skin
Papillary layer and reticular layer
Name the layers of skin indicated below
Epidermis, dermis, and superficial layer of fascia
Name the features of skin indicated below from top to bottom
- blood vessels 2. sebaceous gland 3. arrector pili muscle 4. sudoriferous gland 5. hair follicle