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Wilma Coulter
Anatomy Week 6
Question | Answer |
---|---|
Which of the following is not among the structures that characterize synovial joint? | tendons |
Muscle tone is maintained by | negative feedback mechanisms. |
Repeated stimulation of muscle in time lessens its excitability and contractibility and may result in | fatigue. |
The joint present the growth years between the epiphyses of a long bone and its diaphysis is the | synchrondrosis |
The minimal level of stimulation required to cause a fiber to contract is called the | threshold stimulus. |
___________occurs when the foot is titled upward, thus decreasing the angle between the top of the foot and the front of the leg. | Dorsiflexion |
Anaerobic respiration results in the formation of an incompletely catabolized molecule called | lactate |
Which type of movement occurs between the carpal and tarsal bones and between the articular facets of adjoining spinal vertebrae? | gliding |
Joints joined by fibrocartilage are called | symphyses |
If a structural classification is used, joints are named according to the type of __________tissue that joints the bones together. | connective |
Which of the following is an example of a uniaxial joint? | elbow joint |
Which structure allows the electrical signals to travel along the sarcolemma and move deeper into the cell? | transverse tubule |
Some synovial joints contain a closed pillow-like structure called a(n) | bursa |
The contractile unit of a muscle cell is the | sarcomere |
Exercise may cause an increase in muscle size called | hypertrophy |
Synarthrotic joints are | immovable |
The joints between the articulating surfaces of the vertebral processes are classified as what type of joint? | gliding |
The energy required for muscular contraction is obtained by hydrolysis of | ATP |
The largest and most commonly injured joint in the body is the joint. | knee |
The four kinds of protein that make up myofilaments are myosin, actin, | tropomyosin, and troponin. |