Fascial Planes and Muscles Flashcards
What are 2 types of fascial layers of the upper limbs?
Superficial and Deep fascia.
Fascia deep to the skin and contains fat, superficial veins, lymphatics, and cutaneous nerves.
Superficial fascia.
Lies deep to the superficial fascia; contains muscles, nerves, vessels, and lymphatics.
Deep fascia.
____________ _______ extends to the bones, dividing the arm and forearm into anterior and posterior compartments.
Intermuscular septae.
What are the 6 groups of the upper arm muscles?
Scapular, Rotator Cuff, Intertubercular Groove, Arm, Forearm, and Hand muscles.
Stabilizes the scapulothoracic and glenohumeral joints; consisting of the trapezius, deltoid, rhomboid major/minor, serratus anterior, levator scapulae, pectoralis minor, and subclavius.
Scapular muscles.
Tendons blend with the joint capsule of the glenohumeral joint to provide stability to the joint; consists of supraspinatus, infraspinatus, teres minor, and subscapularis
Rotator Cuff muscles.
Muscles inserts and consists of latissimus dorsi, pectoralis major, and teres major.
Intertubercular groove muscles.
The deep fascia divides the arm into _________ and _________ compartments that have common actions and innervations.
Anterior and Posterior.
What is the common action of the anterior compartment of the arm?
Flexion of the glenohumeral joint/elbow.
What is the common innervation of the anterior compartment of the arm?
Musculocutaneous nerve.
What muscles are in the anterior compartment of the arm?
Coracobrachialis
Biceps brachii
Brachialis
What is the common action of the posterior compartment of the arm?
Extension of the glenohumeral joint/elbow.
What is the common innervation of the posterior compartment of the arm?
Radial nerve.
What muscles are in the posterior compartment of the arm?
Triceps brachii.
The deep fascia divides the forearm into _________ and _________ compartments that have common actions and innervations.
Anterior and Posterior.
What is the common origin of the anterior compartment of the forearm?
Medial epicondyle of the humerus.
What is the common action of the anterior compartment of the forearm?
Flexion of the elbow, wrist, and digits.
What is the common innervation of the anterior compartment of the forearm?
Median and Ulnar nerve.
What is the common origin of the posterior compartment of the forearm?
Lateral epicondyle of the humerus.
What is the common action of the posterior compartment of the forearm?
Extension of the elbow, wrist, and digits.
What is the common innervation of the posterior compartment of the forearm?
Radial nerve.
The intrinsic muscles of the hand consists of those that act on the thumb (______ _____), the little finger (___________ _____), and lumbrical, dorsal interossei, and palmar interossei.
Hand muscles; Thenar muscles; Hypothenar muscles.
