Mr. Bell presents with the inability to move certain muscles on one side of his face. You ask him to make various facial expressions and find that on his right side he is unable to purse his lips, pull in his cheeks, elevate his upper lip, and smirk. What muscles is Mr. Bell unable to contract?

Which of the following muscle groups is considered muscles of inspiration?

a. External intercostal muscles

b. Internal intercostal muscles

c. External oblique muscles

d. Internal oblique muscles

Predict the location and function of the flexor digitorum profundus muscle based only on its name.

Mr. Bell presents with the inability to move certain muscles on one side of his face. You ask him to make various facial expressions and find that on his right side he is unable to purse his lips, pull in his cheeks, elevate his upper lip, and smirk. What muscles is Mr. Bell unable to contract?

Match the muscle with its main action: ​     

_____Sternocleidomastoid muscle     

_____Transversus abdominis muscle     

_____Internal oblique muscle     

_____Rectus abdominis muscle     

_____Splenius capitis muscle     

_____Quadratus lumborum muscle​a.

a. Laterally flexes the trunk

b. Flexes the trunk

c. Compresses the abdominal cavity

d. Extends the vertebral column

e. Flexes the head

f. Extends the head

Which of the following is not a muscle of the rotator cuff?

a. Teres major muscle

b. Teres minor muscle

c. Subscapularis muscle

d. Infraspinatus muscle

e. Supraspinatus muscle

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

a. The pectoralis major and coracobrachialis muscles are antagonists.

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

b. The latissimus dorsi muscle is a major abductor of the arm

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

c. The rhomboid major and minor muscles retract the scapula.

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

d. The deltoid muscle is a main abductor of the forearm.

Match the muscle with its main action: ​     

______Biceps brachii muscle     

______Pronator teres muscle     

______Extensor digitorum muscle     

______Brachialis muscle     

______Triceps brachii muscle     

______Flexor carpi radialis muscle​a.

a. Extends fingers and hand

b. Supinates forearm

c. Flexes hand

d. Extends forearm

e. Pronates forearm

f. Flexes forearm

​​Which of the following muscles flexes the thigh, but also laterally flexes the vertebral column when its origin and insertion switch?

a. Sartorius muscle

b. Psoas major muscle

c. Iliacus muscle

d. Rectus abdominis muscle

Match the muscle with its main action: ​    

____Vastus medius muscle     

____Gracilis muscle     

____Gluteus medius muscle     

____Gastrocnemius muscle     

____Biceps femoris muscle     

____Tibialis anterior muscle​

a. Adducts thigh

b. Extends thigh and flexes leg

c. Plantarflexes foot

d. Abducts thigh

e. Dorsiflexes foot

f. Extends leg

If 'adductor' is part of the name of a muscle, what does that tell you about the muscle?

a. It is a wide muscle.

b. It is a long muscle.

c. It raises a body part.

d. It pulls a body part toward the midline.

Explain how the diaphragm muscle is able to increase the size of the thoracic cavity even though it doesn't insert into a bone.

Ms. Cho presents with muscle pain in the area around her anterior neck and superior chest. She explains that she has had a respiratory infection over the past 2 weeks that made it hard for her to breathe. What is likely causing her muscle soreness? (Hint: Remember that the origin and insertion of some muscles can switch and that one likely has to breathe more deeply with a respiratory infection.)

Match the term with its description:     

_____Brevis     

_____Digitorum     

_____Hallucis     

_____Rectus     

_____Flexor      

_____Pronator​a.

a. Related to the fingers/toes

b. Straightc.

c. Short

d.Decreases the angle between bones

e. Turns palm down

f. Related to the hallux (great toe)

Why do you think that the muscles of the erector spinae and transversospinal muscle groups remain in a state of continual contraction when we are upright?

Elise is a competitive gymnast who strained muscles in her left lower limb doing a tumbling pass. She has pain with extension of her leg and inversion of her foot. Which muscles did she potentially strain?

The action of the biceps brachii muscle on the hinge joint of the elbow is an example of which kind of lever system?

a. First class

b. Second class

c. Third class

d. Fourth class

Why do the three parts of the trapezius muscle have three different actions?

Chris is training for his black belt in karate and is working on developing a stronger punch. Which muscles do you recommend that he strengthen to improve his punch? Explain.

Which function is being fulfilled by a muscle that holds a bone steady during movement?

a. Antagonist

b. Synergist

c. Supinator

d. Fixator

Explain why strengthening the levator ani muscle may help improve bladder and bowel continence (voluntary control over urination and defecation).

Ms. Hendrix suffered a severe hip fracture that required hip replacement surgery. After an extended recovery period, she is undergoing physical therapy to regain strength and mobility.

b. Which muscles were likely affected by the hip replacement surgery, and to which parts of the bone do they attach?

Ms. Hendrix suffered a severe hip fracture that required hip replacement surgery. After an extended recovery period, she is undergoing physical therapy to regain strength and mobility.

c. Which actions could Ms. Hendrix perform to strengthen these muscles?

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

a. The main action of the zygomaticus major and minor muscles is to pull the corners of the mouth up to produce smiling.

The rectus femoris muscle originates from the anterior superior iliac spine and inserts into the tibial tuberosity. Predict its main actions with only this information.

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

b. The orbicularis oris muscle is located around the eye.

Mark the following statements as true or false. If the statement is false, correct it to make a true statement.

c. The temporalis and occipitalis muscles are attached to each other by the epicranial aponeurosis.