Class Notes (834,217)
Canada (508,415)
UOIT (1,693)
Nursing (24)

Health Assessment Session 10 Class Notes

2 Pages
Unlock Document

NURS 2320U
A.De La Rocha

A dermatome is an area of skin supplied with afferent nerve fibres by a single posterior spinal root. The areas supplied by each nerve are illustrated on page 660 of the textbook. There are 31 pairs of spinal nerves (8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal). The spinal nerves are “mixed” nerves because they contain both sensory and motor fibres. The assessment of dermatomes, which are specific skin surfaces and specific skeletal muscles, provides information on PNS function and its integrity with the CNS (Jarvis, 1999). Stroke patients or patients with spinal anesthesia (C- section) may be at risk A reflex arc is a response below the level of consciousness in which sensory afferent fibres carry a message from a receptor, travel through the dorsal root into the spinal cord, synapse in the cord, and send a message through motor efferent fibres to cause a response in the innervated muscle. Reflexes control and permit quick reactions to potentially painful or damaging situations. Reflexes also help the body maintain balance and appropriate muscle tone. There are four types of reflexes: (1) deep tendon (myotatic), (2) superficial, (3) visceral (organic), and (4) pathological (abnormal). The autonomic nervous system mediates unconscious activity and is composed of cranial nerves and spinal nerves. These nerves carry fibres that can be divided functionally into somatic and autonomic fibres. Somatic fibres innervate skeletal (volun
More Less

Related notes for NURS 2320U

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.