13:16Rotator Cuff Muscles | Origins, Insertions, Innervations, and ActionsCatalyst University1178views3rank
Multiple ChoiceTrue or False: if false, choose the answer that best corrects the statement.During a muscle contraction, the origin moves towards the insertion.528views14rankHas a video solution.
Multiple ChoiceThe flexor carpi ulnaris is a muscle that adducts and flexes the hand at the wrist. The muscle attaches to both the humerus and the base of the 5th metacarpal. Based on the movement that this muscle performs, which attachment is the origin?461views10rankHas a video solution.
Multiple ChoiceThe diagram below shows some of the muscles used for chewing. Using your knowledge of the bones, identify the insertion of the masseter.414views6rank1commentsHas a video solution.
Multiple ChoiceThe attachment site of a muscle's tendon to the more-movable bone is called the __________.1158views1rank
Multiple ChoiceA muscle that is inserted on the mandible is probably involved in __________.827views1rank
Multiple ChoiceWhich of the following muscles aids inspiration by lifting the first two ribs?555views
Multiple ChoiceThe most common lever systems in the body are those that have the applied force between the fulcrum and the resistance. These are called __________ levers.1258views
Textbook QuestionLevers make action more versatile by all of the following, except (a) changing the location of the muscle's insertion, (b) changing the speed of movement produced by an applied force, (c) changing the distance of movement produced by an applied force, (d) changing the strength of an applied force, (e) changing the direction of an applied force.157viewsHas a video solution.
Textbook QuestionThe more movable end of a muscle is the (a) insertion, (b) belly, (c) origin, (d) proximal end, (e) distal end.195viewsHas a video solution.
Textbook QuestionMultiple Choice More than one choice may apply. Which of the following muscles attach to the hip bones? a. Rectus abdominis b. Rectus femoris c. Vastus medialis d. Vastus lateralis153viewsHas a video solution.
Textbook QuestionThe muscles of facial expression are innervated by cranial nerve (a) VII, (b) V, (c) IV, (d) VI.226viewsHas a video solution.
Textbook QuestionMultiple Choice More than one choice may apply. Which of these thigh muscles causes movement at the hip joint? a. Rectus femoris b. Biceps femoris c. Vastus lateralis d. Semitendinosus173viewsHas a video solution.
Textbook QuestionMultiple Choice More than one choice may apply. Which of the following insert on the arm? a. Biceps brachii b. Triceps brachii c. Trapezius d. Latissimus dorsi220viewsHas a video solution.
Textbook QuestionIn addition to acting to flex the spine and compress the abdominal contents, the abdominal muscles are extremely important in protecting and containing the abdominal viscera. What is it about the arrangement of these muscles that makes them so well suited for their job?280viewsHas a video solution.
Textbook QuestionDistinguish between a. direct and indirect muscle attachments and b. a tendon and an aponeurosis.288views1rankHas a video solution.
Textbook QuestionExplain the general relationship between the muscles that flex and extend the wrist, including their location on the body.170viewsHas a video solution.
Textbook QuestionWhat three functions are accomplished by the muscles of the pelvic floor?149viewsHas a video solution.
Textbook QuestionOn which bones do the four rotator cuff muscles originate and insert?181viewsHas a video solution.
Textbook QuestionA(n)____develops when an organ protrudes through an abnormal opening.142viewsHas a video solution.
Textbook QuestionElongated bursae that reduce friction and surround the tendons that cross the posterior and anterior surfaces of the wrist form___.139viewsHas a video solution.
Textbook QuestionAssume you have a 10-lb weight in your right hand. Explain why it is easier to flex the right elbow when your forearm is supinated than when it is pronated.174viewsHas a video solution.
Textbook QuestionMr. Ahmadi, an out-of-shape 45-year-old man, was advised by his physician to lose weight and to exercise on a regular basis. He followed his diet faithfully and began to jog daily. One day, while on his morning jog, he heard a snapping sound that was immediately followed by a severe pain in his right lower calf. When his leg was examined, a gap was seen between his swollen upper calf region and his heel, and he was unable to plantar flex that ankle. What do you think happened? Why was the upper part of his calf swollen?209viewsHas a video solution.
Textbook QuestionWhat class of lever system do the following activities describe? a. The soleus muscle plantar flexes the foot. b. The triceps brachii is strained while doing pushups.147viewsHas a video solution.
Textbook QuestionMary sees Jill coming toward her and immediately contracts her frontalis and procerus. She also contracts her right levator labii. Is Mary glad to see Jill? How can you tell?149viewsHas a video solution.
Textbook QuestionWhile unloading her car trunk, Amy strains a muscle and as a result has difficulty moving her arm. The doctor in the emergency room tells her that she strained her pectoralis major. Amy tells you that she thought the pectoralis major was a chest muscle and doesn't understand what that has to do with her arm. What should you tell her?151viewsHas a video solution.
Textbook QuestionWhich eye muscle passes through the trochlea and turns the eye inferiorly and laterally?a. Lateral rectus muscleb. Inferior rectus musclec. Inferior oblique muscled. Superior oblique muscle124viewsHas a video solution.
Textbook QuestionMark 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 arm113viewsHas a video solution.
Textbook QuestionWhich of the following muscles flexes the thigh, but also laterally flexes the vertebral column when its origin and insertion switch?a. Sartorius muscleb. Psoas major musclec. Iliacus muscled. Rectus abdominis muscle114viewsHas a video solution.
Textbook QuestionMatch the muscle with its main action: ____Vastus medius muscle ____Gracilis muscle ____Gluteus medius muscle ____Gastrocnemius muscle ____Biceps femoris muscle ____Tibialis anterior musclea. Adducts thighb. Extends thigh and flexes legc. Plantarflexes footd. Abducts thighe. Dorsiflexes footf. Extends leg112viewsHas a video solution.
Textbook QuestionExplain how the diaphragm muscle is able to increase the size of the thoracic cavity even though it doesn't insert into a bone.108viewsHas a video solution.
Textbook QuestionWhy 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?95viewsHas a video solution.
Textbook QuestionThe rectus femoris muscle originates from the anterior superior iliac spine and inserts into the tibial tuberosity. Predict its main actions with only this information.160viewsHas a video solution.
Textbook QuestionElise 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?104viewsHas a video solution.
Textbook QuestionChris 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.99viewsHas a video solution.
Textbook QuestionMs. 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?110viewsHas a video solution.
Textbook QuestionMs. 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?99viewsHas a video solution.