Question

Skeletal Muscle System

Muscle Contraction

1. The phase of the sliding filament mechanisms are activation of myosin followed by __________; the last step is _______. The detachment phase requires ___________. The power stroke phase requires __________. A crossbridge is formed between _________. Calcium binds to ________ which is necessary for _________.
2. At the neuromuscular junction, __________ is released by the neuron; it binds to ________ on the muscle cell to eventually trigger ___________. Action potentials in skeletal muscle cells are needed _________.
3. During ___________ contractions, the muscle stays at the same length; During _________ contractions, the muscle shortens; the muscle lengthens during ________ contractions
4. Type 1 muscle fibers produce ATP ________ and fatigue ________; type 2a fibers produce ATP ________ and fatigue ________; type 2b fibers produce ATP __________ and fatigue _______.

Blood

1. Blood is made up ______ plasma and _______ formed elements. Plasma is mostly ________ with dissolved __________.  
2. __________ account for most of the formed elements. These cells transport ___________. RBCs are produced in the ________ in response to ________ that is produced in the ________ in response to _________
3. White blood cells are a part of the __________. The most common white blood cells are __________ and the least common are ________. ___________ kill bacteria; _________ produce antibodies; ______ fight parasites; ________ scavenge debris.
4. Your blood type is based on the _________ on the surface of the RBCs. There are _______ possible blood types. The two most common blood types are __________. The universal donor blood type is ________; the universal acceptor blood type is _______. The possible genotypes for A, B, AB, O blood are_________. Type AB+ blood has ___________ antigens and _______antibodies. Type O+ has ________antigens and _______antibodies. Type A- blood can be safely transfused to __________ recipients

Answer 1

1. followed by calcium attaches tropomyosin
2. The myosin head bind to the actin
3. ATP to bind to the myosin
4. ATP breakdown to release energy
5. Myosin and actin
6. Calcium binds to tropomyosin
7. So that tropomyosin moves from the active site on the actin

1. Neurotransmitters are releases
2. Receptors on the muscle
3. Action potential
4. stimulating muscle contraction
5. Isometric
6. concentric Isotonic
7. Eccentric isotonic
8. via aerobic pathway
9. less
10. via an anaerobic pathway and aerobic
11. moderately
12. via anaerobic pathway
13. the most.

1. 55% plasma
2. 45% formed elements
3. water
4. nutrients, gases, hormones, enzymes, Electrolytes
5. Red blood cells
6. Oxygen
7. Bone marrow
8. erythropoietin
9. interstitial fibroblasts in the kidney
10. hypoxia

1. Immune system
2. Neutrophil
3. Basophil
4. Neutrophils
5. Plasma cells
6. Eosinophil
7. Macrophage

1. Antigen
2. 4
3. O positive and A positive
4. O Rh-negative
5. AB Rh positive
6. genotypes are
   1. A blood group - AA, AO
   2. B blood group - BB, BO
   3. AB blood group - AB
   4. O blood group - O
7. A, B and D antigen
8. None
9. no A no B but D antigen is present
10. Anti-A and Anti-B
11. A Rh negative and Rh positive ( people who are rH postive can be give both blood types, but people who RH negative can be given only negative blood as they have anti D antibodies in their blood)