FHC Cat Dissection

The Peripheral Nervous System

Dissection of Nerves of the Brachial Plexus

The Brachial Plexus is a network of nerves found in the axillary region. These nerves lead to and serve the

foreleg.

Radial Nerve

This is the largest nerve of the Brachial Plexus. Itis located just under the biceps brachii and serves

the triceps brachii.

At this point,the RadialNerve disappearsand branches to serve the triceps.

Median Nerve

Median Nerve

Again, the Median Nerve

Median Nerve

Ulnar Nerve

Again, the Ulnar Nerve

Ulnar Nerve

Nerves of the Sacral Plexus

Sciatic Nerve

The sciatic nerve is a very large nerve about 1/4” thick. It passes below the muscles of the lateral surface of the thigh and gluteal area. It regulates the thigh and lower leg muscles.

Muscular Branch of the Sciatic Nerve

The Muscular Branch nerve is the 1st major proximal

branch of the sciatic nerve. It supplies the biceps femoris,

semitendinosus, semimembranosus,

and adductor femoris muscles.

Tibial Nerve

Tibial Nerve

The Tibial Nerve is a major

branch of the sciatic. It serves

the gastrocnemius

and soleus muscles.

Common Peroneal NerveThe Common

Peroneal Nerve branches away from the root of the sciatic nerve at the same site

as the tibial nerve. It regulates

contraction in the peroneus longus

and tibialis anterior muscles.

Sympathetic Trunk Nerve

The Sympathetic Trunk Nerves (there are several of them) lie on either side of the vertebral column. They extend from the base of the skull to the tail. The bumps are called rami and they are

nerve ganglia.

Again, the Sympathetic Trunk Nerve

You have now completed yourcat dissection. Seniors - Please put your cat under Lab Station

#8. Juniors - Store your cat under the microscope storage

case. Please wrap your cat up in its double plastic bag and secure

completely.

And now, some memories:

The Mammaries