| A | B |
|---|
| Pectoralis major | upper chest |
| What is the function of the Pectoralis major? | It is responsisble for movement of the shoulder joint. |
| Latissimus dorsi (lats) | middle of the back |
| What is the function of the Latissimus dorsi? | extension of the shoulder joint |
| deltoids | the outer aspect of the shoulder and is recognized by its triangular shape |
| What is the function of the deltoids? | it moves the arm, anterior shoulder, abducts arms, extends or flexes humerus. |
| biceps | upper arm between the shoulder and the elbow |
| What is the function of the biceps? | they will bend the arm at the elbow |
| triceps | large muscle on the back of the upper limb |
| What is the function of the triceps? | this muscle will straighten the arm |
| trapezius | move the scapulae and support the arm |
| What is the function of the trapezius | it moves the pectoral girdle, posterior shoulder, raises the arm, shrugs the shoulders, and elevates the scapula. |
| gastrocnemius | the back portion of the lower leg |
| what is the function of the gastrocnemius? | plantar flexing the foot at the ankle joint and flexing the leg at the knee joint. |
| temporalis | a fan-shaped muscle on each side of the head |
| What is the function of the temporalis? | it controls the temples, elevates the mandible, chesing and muscle fo mastication. |
| frontalis | a muscle on the font of the head |
| What is the function of the frontalis muscle? | it moves the forehead, raises eyebrows and causes facial expressions |
| orbicularis oculi | it is a muscle around the eyes, close to the eye and creates facial expressions |
| What is the function of the orbicularis oculi? | It closes the eyelid and helps in the passing and draining of tears through the punctum. |
| zygomaticus | it starts at the cheekbone and extends to the corner of the mouth. |
| What is the function of the zygomaticus muscle? | It controls facial expression, drawing the mouth's angle upward and outward. This muscle causes the corners of a person's mouth to rise when they smile. |
| Sternocleidomastoid | a long muscle in the side of the neck that extends up from the thorax to the base of the skull behind the ear |
| What is the function of the sternocleidomastoid muscle? | this muscle rotate the head to the opposite side or obliquely. |
| occipitalis | the muscle on the back of the head |
| what is the function of the occipitalis muscle? | it is at the base of the skull, and it raises and moves the scalp over the cranium. |
| sternum | it is shaped like a capital T, and it is a flat bone located in the middle of the thorax between the 2 sets of ribs |
| What is the function of the sternum muscle? | It protects the heart, lungs and blood vessels from physical damage |
| rectus abdominis | it is located in the front of the body |
| What is the function of the rectus abdominis muscle? | IT PULLS THE RIBS AND THE PELVIS IN AND CURVES THE BACK |
| What is the function of the external oblique? | flection |
| external oblique | brachialis mucle |
| brachialis | it is the muscle in the upper arm that flexes the elbow joint |
| palmaris longus | it is the small tendon between the flexor carpi radialis and the flexor carpi ulnaris |
| soleus | the back of the lower leg |
| biceps femoris | it performs knee flexion and hip extensions |
| What are the 3 types of muscular tissue and where are they found? | cardiac = heart; skeletal = along the bones; smooth = intestine |
| involuntary muscle | you do NOT control these muscles; ex: heart |
| voluntary muscle | you do control these muscles; EX: leg and arm |
| 3 functions of the muscular system: | 1. needed to pump blood 2. needed to breath 3. needed for all types of movement |
| flexion | movement that bends with a decreasing angle at the joint |
| extension | movement that straightens with an increasing the angle at the jointabduction |
| abduction | moves the limb away from the body |
| adduction | moves the limb towards the body |
