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23 Cards in this Set
- Front
- Back
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T/F
Osteoclasts are inhibited by PTH. |
False
Osteoclasts are NOT inhibited by PTH |
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What is the proper name for Marble Bone Disease?
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Osteopetrosis
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What is the adult form of Paget disease of bone?
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Osteitis Deformans
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What is the proper name for brittle bone disease?
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Osteogenesis Imperfecta
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What bone disease causes inflammation of the bone and marrow cavity?
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Osteomylitis
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What disease is characterized by low bone mass and microarchitectural deterioration with a subsequent increase in bone fragility and susceptibility to fracture?
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Osteoporosis
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T/F
Both bone and hyaline cartilage have capillaries |
False
Hyaline Cartilage is Avascular |
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What are the ABCs of Melanoma?
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A- Assymetric
B- Border irregularity C- Coloration D- Diameter >6mm E- Enlargement |
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What glands resorb sodium in their ducts, possess prominent myoepithelial cells, are present and functional at birth, are involved in temperature control, and are NOT involved with lipid rich product?
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Eccrine Sweat Glands
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Are PTH & Vit D hypercalcemic or hypocalcemic hormones?
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PTH & Vit D are Hypercalcemic hormones
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What cells acidify the osteoid, secrete proteolytic enzymes, & are located on the surface of long bones?
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Osteoclasts
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T/F
The term for necrotic bone is achondoplasia. |
False
Osteonecrosis |
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Calcium and Estrogen are?
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Hypocalcemic hormones(??)
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In skeletal muscle fiber, heavy meromyosin is localized in the
a) bridges between thick filaments b) bridges between thin filaments c) bridges between thick and thin filaments d) sarcolemma e) z-disks |
C) bridges between thin and thick filaments
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Which of the following statements is TRUE of the calcium releasing channels between the terminal cisterns and the sarcoplasmic reticulum of skeletal muscle?
a) They are ryanodine sensistive channels b) they are opened by the conformational change of troponin c) they require ATP to release calcium d) they are also found in the t-tubule membrane e) all of the above are true |
A) They are ryanodine sensitive channels
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Defects of dystrophin are thought to be the cause of which of the following?
a) dermatomyositis/polymyositis b) leiomyoma c) myasthenia gravis d) rhabdomyoma e) duchenne muscular dystrophy |
Duchenne Muscular Dystrophy
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Which of the following is INCORRECT regarding organ-level muscle physiology?
a) Recruitment of motor units is used to increase contractile strength b) Asynchronous activation of motor units accompanies recruitment c) Isometric twitches develop contractile strength more slowly than isotonic twitches d) isotonic twitches exhibit greater velocity of shortening than isometric twitches e) all of the above are correct |
C)
Isometric twitches actually develop contractile strength faster than isotonic twitches |
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If ATP does not reattach to the myosin head
a) calcium cannot bind to tropomyosin b) The myosin cross-bridge cannot be formed with the actin active site c) Myosin cannot split off inorganic phosphate from ADP d) The myosin cross-bridge cannot release from the actin active site e) None of the above |
D)
The myosin cross-bridge cannot release from the actin active site |
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Peripheral neuropathies and motor neuron diseases are most likely to lead to which of the following?
a) Muscular dystrophy b) Muscular neoplasm c) Denervation atrophy d) Inflammatory myopathy |
C) Denervation Atrophy
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Which of the following is the receptor which can elicit a flexor withdrawal reflex?
a) Free nerve endings for pain b) I-alpha c) I-beta d) II e) Stretch receptor |
a) Free Nerve Ending for Pain
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If a person sustains a spinal cord injury to the left lateral corticospinal tract at the level of C4 they are more than likely to have which of the following conditions?
a) Inability to move their right arm and right leg b) Inability to speak c) Inability to move both the upper and lower extremities on both sides d) Inability to move their left arm and left leg e) A complete paralysis extensor muscles of the back |
D) Inability to move their left arm and left leg
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Which of the following statements are true regarding Parkinsonism and its treatment?
1. The cell bodies of most dopaminergic neurons in the brain are located in the substantia nigra 2. 95% of an administered dose of L-dopa is converted to dopamine in the brain 3. The tremor associated with Parkinsonism is most apparent during movement 4. Akinesia is a symptom of Parkinson's disease 5. Sinemet inhibits systemic dopa decarboxylase a) 125 b) 234 c) 345 d) 123 e) 145 |
E) 145
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Which of the following statements are true regarding myasthenia gravis and its treatment?
1. Myasthenia gravis is a genetic disorder 2. Neostigmine, a choline esterase antagonist, can be used to treat myasthenia gravis 3. An early symptom of the onset of myasthenia gravis is weakness around the eyes 4. Dysphagia is a symptom of myasthenia gravis that can impact provision of dental care to the patient 5. Splenectomy would be an appropriate surgical intervention for a person with myasthenia gravis a) 145 b) 125 c) 345 d) 234 e) 123 |
D) 234
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