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Material Type: Quiz; Professor: Venglarik; Class: Human Anatomy and Physiology I; Subject: Biology; University: Jefferson State Community College; Term: Unknown 1989;
Typology: Quizzes
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Bio 201 Lecture Quiz 5 Name_____________________________
I. Match the terms in Column B with the corresponding descriptions in Column A. Enter the correct letters in the answer blanks next to each number. (letters may be used more than once)
1. Stimulates kidneys to reabsorb Ca+2^ A. Osteoclasts **** 2. 3. Both of these are forms of vitamin D B. Osteoblasts 4. These cells are related to macrophages C. Osteocytes **** 5. Type of cell directly responsible for making bone D. Osteogenic cells **** 6. Stem cells related to to bone formation E. Calcitonin 7. Hormone that is produced by the kidney F. Calcitriol **** 8. Hormone that is produced by the thyroid gland. G. Calcidiol ___9. This hormone stimulates growth in the epiphyseal plates H. Parathyroid hormone ___10. Mature cells that send electrical signals to increase bone growth when it is stressed by exercise or manual labor.
I. Growth hormone
___11. Stimulates intestines to absorb calcium from diet ___12. ___13. Stimulates osteoclast activity. ___14. Stimulates osteoblast activity. ___15. Produced by parathyroid gland. ___16. Produces a hormone that inhibits the osteoblasts ___17. Type of cell that arises from osteogenic cells ___18. Inactive hormone precursor that is produced by the liver. ___19. Stimulates the kidneys to make activated vitamin D ___20. Found in resorption bays
II. The figure at right illustrates a longitudinal section through a right humerus. Match the letters (A-I) with the term that best describes the structure associated with that letter. (letters may be used more than once or not at all)
_____1) Articular cartilage _____2) Compact bone _____3) Spongy bone _____4) Epiphyseal line _____5) Marrow cavity _____6) Location of yellow marrow _____7) Diaphysis _____8) Periosteum _____9) Location of hemopoietic tissue _____10) Lined with endosteum _____11) _____12) Epiphyses _____13) Location of primary ossification center _____14) Place where the epiphyseal plate used to be
I. Identify the correct sequence of events underling excitation-contraction coupling in a skeletal muscle fiber by numbering each statement below. The first step is indicated (number 1). _______1. The electrical charge travels inward via the t tubule. _______2. Myosin heads bind to their binding sites on actin thin filaments. _______3. Calcium ions bind to troponin. _______4. Cross bridge cycling continues until Ca+2^ is pumped back into the sarcoplasmic reticulum. _______5. The calcium-bound troponin alters the shape of tropomyosin. ____ 1 __6. An action potential travels away from the neuromuscular junction. _______7. Tropomyosin moves, exposing myosin binding sites on actin. _______8. The sarcoplasmic reticulum (SR) releases calcium into the sarcoplasm (cytoplasm).
IV The figure below shows the components of a neuromuscular junction. Identify the structures in this diagram by matching the letters with the list given below. Add small arrows to indicate the location of the ACh receptors.
_____ Mitochondrion _____ Synaptic vesicle _____ T tubule _____ Motor end plate _____ Synaptic cleft _____ Sarcomere _____ Calcium ions _____ Synaptic knob