Muscle and Nervous Tissue

What are the three types of muscle?

• skeletal

• smooth

• cardiac

Where is skeletal muscle located?

skeletal muscles

skeletal muscle function

Voluntary movement, Moves skeleton and support joints

skeletal muscle characteristics

Long, straight parallel fibers (striated) Multinucleated cells

where is cardiac muscle located?

heart

cardiac muscle function

Pump blood through body involuntary movement

cardiac muscle characteristics

• Intercalated discs and branching cells

• Striated cells

• One to two nuclei per cell

where is smooth muscle located?

Walls of hollow organs and blood vessels

smooth muscle function?

Involuntary movement of substances through organs/body

smooth muscle characteristics

• Do not have striations

• One nucleus per cell

what are neurons?

electrically excitable cells

what do Glial cells (neuroglia) do?

support nuerons

Neurons and glial cells function

Receive stimuli (dendrites) and send electric signals (axon) to communicate with other cells

what is a Multipolar Neuron?

Large, irregularly-shaped neural cells with a Single nucleus

multipolar neuron cell function

• Motor neurons (usually multipolar) relay information from the CNS to the peripheral nerves

• Stimulate muscles or glands