GCU BIO 201 Exam 3 Actual Study Questions with Expert Graded A+ Answers | Brand New Edition

GCU BIO 201 Exam 3 Actual Study Questions with Expert Graded A+ Answers | Brand New Edition 1. A suture is a joint that can be described as ___ functionally, and ___ structurally. - ANSWER Synarthrosis, Fibrosis 2. The knee joint can be described as ___ joint and allows for ___ movement. - ANSWER Hinge, Monoaxial 3. ___ is an autoimmune, inflammatory arthritis, that typically occurs in women ages 40-50. - ANSWER Rheumatoid 4. ___ surrounds each myofibril to help carry the action potential throughout the muscle. - ANSWER Transverse Tubule 5. ___ receptors are fast and ___ receptors are slower and can involve a second messenger. - ANSWER Ionotropic, Metabotropic 6. Which of the following is not true about inhibitory neurotransmitters. 7. They lead to the generation of EPSP They suppress action potentials Cause hyperpolarization of the postsynaptic cell membrane The work by moving K+ out of the cell and Cl- into the cell - ANSWER 1. They lead to the generation of EPSP 8. synarthroses - ANSWER immovable joints, found in places such as the sutures of the skull 9. Amphiarthrosis - ANSWER slightly movable joint in places like the innervertebral discs 10. diarthroses - ANSWER freely movable joints, found in places such as the shoulder 11. synovial joints - ANSWER freely movable joints that connect bones with a sack of fluid to prevent rubbing and breakdown of bone 12. synchondroses - ANSWER bones united by hyaline cartilage (cartilaginous joints); are NOT freely moveable; in places such as the epiphyseal line 13. symphysis - ANSWER limited movement of joints due to the covering of articular surface of joints with hyaline cartilage. ex. pubis symphysis in os coxa 14. fibrous joints - ANSWER consists of inflexible layers of dense connective tissue, holds the bones tightly together (3 Types) 15. Suture Joints - ANSWER fuse bones together, such as in the skull 16. Syndesmosomes - ANSWER bones connected to ligaments, such as the ligaments that connect the radius and ulna 17. Gomphoses - ANSWER peg-in-socket fibrous joint, such as teeth in the alveolar socket 18. Menisci - ANSWER Pads of cartilage that lie between the articular surfaces of the bones, especially between the knee and mandible 19. ___ helps to store calcium, needed for muscle contraction. - ANSWER Sarcoplasmic Reticulum (SR) 20. From the outside to in, the connective tissue wrappings of skeletal muscle are as followed - ANSWER Epimysium, Perimysium, Endomysium 21. The sarcomeres contain thin filaments made up of ___, thick filaments made up of ___. - ANSWER Actin, Myosin 22. ___ is the region of the sarcomeres that has NO thin filaments and gets ___ during contraction. - ANSWER H Band, Smaller 23. An action potential reaches the synaptic ___ and stimulates the opening of voltage gated ___. - ANSWER Knob, Ca 24. Ca stimulates the ___ Ach. Ach enter the cleft and binds to ___ on the sarcolemma. - ANSWER Exocytosis, Ligand Gated Channel 25. During contraction, Ca binds directly to ___ allowing ___ to attach to the thin filament. - ANSWER Troponin, Myosin 26. The role of acetylcholinesterase is to? - ANSWER Removal of Ach leading to cessation of muscle contraction. 27. ___ is described as a single brief contraction. - ANSWER Twitch 28. Shortening a muscle by doing a biceps curl is an example of a ___ type of muscle contraction. - ANSWER Isotonic Concentric