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Biology

Review Questions

BiologyReview Questions
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4.

The forearm consists of the:

  1. radius and ulna
  2. radius and humerus
  3. ulna and humerus
  4. humerus and carpus
5.

The pectoral girdle consists of the:

  1. clavicle and sternum
  2. sternum and scapula
  3. clavicle and scapula
  4. clavicle and coccyx
6.

All of the following are groups of vertebrae except ________, which is a curvature.

  1. thoracic
  2. cervical
  3. lumbar
  4. pelvic
7.

Which of these is a facial bone?

  1. frontal
  2. occipital
  3. lacrimal
  4. temporal
8.

The Haversian canal:

  1. is arranged as rods or plates
  2. contains the bone’s blood vessels and nerve fibers
  3. is responsible for the lengthwise growth of long bones
  4. synthesizes and secretes matrix
9.

The epiphyseal plate:

  1. is arranged as rods or plates
  2. contains the bone’s blood vessels and nerve fibers
  3. is responsible for the lengthwise growth of long bones
  4. synthesizes and secretes bone matrix
10.

The cells responsible for bone resorption are ________.

  1. osteoclasts
  2. osteoblasts
  3. fibroblasts
  4. osteocytes
11.

Compact bone is composed of ________.

  1. trabeculae
  2. compacted collagen
  3. osteons
  4. calcium phosphate only
12.

Synchondroses and symphyses are:

  1. synovial joints
  2. cartilaginous joints
  3. fibrous joints
  4. condyloid joints
13.

The movement of bone away from the midline of the body is called ________.

  1. circumduction
  2. extension
  3. adduction
  4. abduction
14.

Which of the following is not a characteristic of the synovial fluid?

  1. lubrication
  2. shock absorption
  3. regulation of water balance in the joint
  4. protection of articular cartilage
15.

The elbow is an example of which type of joint?

  1. hinge
  2. pivot
  3. saddle
  4. gliding
16.

In relaxed muscle, the myosin-binding site on actin is blocked by ________.

  1. titin
  2. troponin
  3. myoglobin
  4. tropomyosin
17.

The cell membrane of a muscle fiber is called a ________.

  1. myofibril
  2. sarcolemma
  3. sarcoplasm
  4. myofilament
18.

The muscle relaxes if no new nerve signal arrives. However the neurotransmitter from the previous stimulation is still present in the synapse. The activity of ________ helps to remove this neurotransmitter.

  1. myosin
  2. action potential
  3. tropomyosin
  4. acetylcholinesterase
19.

The ability of a muscle to generate tension immediately after stimulation is dependent on:

  1. myosin interaction with the M line
  2. overlap of myosin and actin
  3. actin attachments to the Z line
  4. none of the above
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