Lecture 18 - Nerve and Blood Supply of Lower Limb Flashcards
important nerves of the lower limb
From the lumbar plexus
- > Femoral nerve (L2-L4)
*primarily supplies quadriceps group
- > obturator nerve (L2-4)
*primarily supplies the adductor group
From the sacral plexus
- > sciatic nerve
*in the posterior thigh, made up of two portions
- > tibial and common fibular (peroneal) nerves
*these are responsible for hamstrings group and the muscles of the leg
nerves of the lower limb (front)
nerves of the lower limb (back)
where does the heart and aorta sit at rest
- > on top of the diaphragm in the space between the T4 - T8
- > arch of the aorta reaches to alightly above T3
parts of the heart
blood flow through the heart
additional structures of the aorta and its surrounding structures
arteries going into the upper limb (shoulder)
arteries in the forearm
arteries in the forearm and hand
relate aortic arch to lower body arteries
3 holes in the diaphragm
things need to get through
- > aorta
- > esophagus
- > inferior vena cava
characteristics of the diaphragm
- > done shaped structure composed of muscle and connective tissue
- > anteriorly it attaches to the xiphoid process, and along the costal margin
- > laterally, it attaches to ribs 6-12
- > converges on the central tendon
- > action: flattens during inspiration to increase volume of the thoracic cavity
- > innervated by the phrenic nerve (C3, C4, C5)
beside the diaphragm, what are some other muscles of breathing and when are they used
External intercostals
- > used during quiet and forced inhalation
Internal intercostals
- > used during forced exhalation
Scalenes
arteries of the lower limb
femoral artery goes through a hole in adductor magnus to cross behind
femoral triangle
arteries of the leg, foot and ankle
blood flow of the foot
