Human Biology Biology 105-55244 Review Game Students must place the following activities in the correct chronological order: Transmission across a Synaptic Cleft: A. Receptors are ligand gated sodium ion channels which allow Na+ to enter the postsynaptic neuron (or muscle) and triggers an action potential in the postsynaptic neuron (or muscle contraction) B. Action potential gets to the end of the presynaptic axon C. The Ca++ triggers synaptic vesicles located at the axon terminal to merge with the neural membrane D. Neurotransmitters travel across the synaptic cleft to the postsynaptic neuron (or the muscle) E. Neurotransmitter binds to receptors on the postsynaptic neuron (or muscle) F. Once the neurotransmitters are released they need to be destroyed or contained quickly G. Synaptic vesicles release the neurotransmitters into the synaptic cleft H. Action potential triggers Ca++ to enter the presynaptic axon terminal STEP 1: __________ STEP 2: __________ STEP 3: __________ STEP 4: __________ STEP 5: __________ STEP 6: __________ STEP 7: __________ STEP 8: __________ Human Biology Biology 105-55244 Review Game Students must place the following activities in the correct chronological order: Muscle Contraction A. The sarcoplasmic reticulum releases Ca++ B. The receptors are ion channels that open C. An action potential travels through the T tubules D. Opens binding site for the myosin to attach E. Myosin slides past the actin F. Neurotransmitters are released G. The Ca++ binds to the troponin on the actin filament H. Neurotransmitters bind to the receptor on the sarcolemma I. Myosin binds to the actin J. The action potential goes to the sarcoplasmic reticulum K. Action potentials are transmitted through the neurons STEP 1: __________ STEP 2: __________ STEP 3: __________ STEP 4: __________ STEP 5: __________ STEP 6: __________ STEP 7: __________ STEP 8: __________ STEP 9: __________ STEP 10: __________ STEP 11: __________ Human Biology Biology 105-55244 Review Game Students must place the following activities in the correct chronological order: Coagulation A. Platelets adhere to the damaged site B. Clotting factors activate inactive proteins in a cascade C. Fibrin strands form and trap blood cells and Platelets form a meshwork forming a clot and sealing the damaged vessel D. Blood vessel damage occurs E. Clotting factors are released at the site of the injury F. Clot contracts and pulls damaged edges together G. Blood vessel constricts/spasms STEP 1: __________ STEP 2: __________ STEP 3: __________ STEP 4: __________ STEP 5: __________ STEP 6: __________ STEP 7: __________