A&P 1 Word Scramble
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Question | Answer |
Articular cartilage is | hyaline cartilage. |
Which of the following is not found associated with spongy bone? | Osteons |
Men and women begin to lose bone at the same rate by about age 70. | True |
Compact bone has ________, whereas spongy bone has __________. | osteons; trabeculae |
The parietal bones meet each other along the sagittal suture. | True |
Which of the following describes a female's pelvis compared to a male's pelvis? | A cavity that is wider in all dimensions, with lighter bones. |
In a child, a vitamin D deficiency results in ______, whereas a vitamin A deficiency results in ______. | rickets; retardation of bone development |
Which of the following groups of bones, based on shape, is associated with an incorrect example? | Flat bones - thigh bones |
At what age are nearly all bones completely ossified? | 25 years |
Osteoblasts are ______, whereas osteocytes are ______. | bone-forming cells; mature bone cells |
A bone shaft is the diaphysis; the expanded parts at the ends are the epiphyses. | True |
The sternum is part of the | axial skeleton. |
The primary curves of the vertebral column are the | thoracic and sacral curvatures. |
A bone thickens | as compact bone is deposited beneath the periosteum of the diaphysis. |
The pectoral girdle consists of two scapulae and two clavicles. | True |
The number of bones in most people is 206. | True |
Bones in the human body are non-living. | False |
Endochondral ossification ______, whereas intramembranous ossification ______. | replaces hyaline cartilage; replaces undifferentiated connective tissue |
The acetabulum is | a depression in the hip bone that receives the head of the femur. |
In a push-up, the elbow joint flexes as the person lowers. | True |
Which of the following movements could occur at the hip joint? | All of the above 1-Abduction and adduction 2-Rotation 3-Flexion and extension |
Synovial fluid moistens and lubricates the cartilaginous surfaces in a joint. | True |
A gomphosis is a ______ joint. | fibrous |
Classifying joints as synarthrotic, amphiarthrotic, or diarthrotic represents | the degree of movement possible at the joint. |
Fibrous joints are the first to change with age. | True |
A synovial membrane | secretes synovial fluid. |
Arthritis is a circulatory problem. | False |
A joint capsule is reinforced by | ligaments binding articular ends of bones together. |
A meniscus cushions articulating surfaces of bones. | True |
The joint between adjacent vertebral bodies is a | symphysis that is amphiarthrotic. |
A saddle joint forms between bones whose articulating surfaces have both convex and concave regions. | True |
The increase in the number of motor units activated as a result of more intense stimulation is called | recruitment. |
A plank position is part of a yoga/Pilates workout. The person supports the body on the floor in a prone position with the arms and feet supporting the body. Contraction of the abdominal muscles in a plank is most likely | isometric. |
The outermost layer of connective tissue surrounding a skeletal muscle is the | epimysium. |
At a neuromuscular junction | neurotransmitters are released. |
Which of the following statements is correct? | Actin filaments slide along myosin filaments. |
The more movable end of a muscle is its | insertion. |
The amount of oxygen liver cells require to support the conversion of lactic acid to produce glucose or glycogen is the | oxygen debt |
Short muscle cells with centrally located nuclei are | smooth muscle fibers. |
Which of the following is not a muscle of mastication? | Zygomaticus |
Transverse tubules and sarcoplasmic reticulum are well developed in | skeletal and cardiac muscle fibers. |
The soleus is a muscle that forms part of the | calf. |
Myofibrils are composed primarily of | actin and myosin. |
In the initiation of muscle fiber contraction calcium ions bind to tropomyosin, exposing active sites on actin for cross-bridge formation. | False |
Endomysium separates individual muscle fibers from each other. | True |
The buccinator muscle is in the | Cheek |
The muscle that causes an action is the | agonist. |
Binding sites on the surface of actin allow the formation of cross-bridges with molecules of | myosin. |
A motor unit is | a motor neuron and the muscle fibers connected to it. |
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lluckey3
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