ch 12 nervous system flashcards _ Quizlet

Com7971136ch 12 ner vous system flash car ds 3355

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: tion potential in the sarcolem m a a-d Which of c the follow ing phrases best describes how excitation is coupled to contraction in skeletal m uscle fibers? q uizlet.com/7971136/ch- 12- ner vous- system- flash- car ds/# 34/55 11/3/13 ch 12 ner vous system flashcar ds | Quizlet through T tubules through cross-bridge form ation through calcium release from the sarcoplasm i c reticulum through electrical im pulses trav elling along the sarcolem m a-d Malignant a hy pertherm ia (MH) is a rare genetic disease in w hich the sarcoplasm i c reticulum leaks calcium w hen the patient is put under general anesthesia. Which of the follow ing best describes how anesthesia w ould affect the skeletal m uscles of a patient w ith MH? q uizlet.com/7971136/ch- 12- ner vous- system- flash- car ds/# 35/55 11/3/13 ch 12 ner vous system flashcar ds | Quizlet The m uscles w ould contract because of calcium binding to troponin. The m uscles w ould contract because of increased action potential generation in the sarcolem m a . The m uscles w ould contract because of increased nerv e stim ulation. The m uscles w ould relax because of calcium being pum ped back into the sarcoplasm i c reticulum a-d W ha t c causes the release of calcium from the term inal cisternae of the sarcoplasm i q uizlet.com/7971136/ch- 12- ner vous- system- flash- car ds/# 36/55 11/3/13 ch 12 ner vous system flashcar ds | Quizlet c reticulum w ithin a m uscle cell? ATP calcium ion pum p arriv al of an action potential troponin a-d The binding b of calcium to w hich m olecule causes the m y osin binding sites to be exposed? actin troponin tropom y osi n a-c A m y osin b head binds to w hich m olecule to form a cross bridge? troponin actin tropom y osi n a-c W ha t energizes the pow er stroke? hy droly sis a q uizlet.com/7971136/ch- 12- ner vous- system- flash- car ds/# 37/55 11/3/13 ch 12 ner vous system flashcar ds | Quizlet of ATP calcium binding of ATP a-c W ha t c causes the m y osin head to disconnect from actin? binding of calcium hy droly sis of ATP binding of ATP binding of troponi a=d I n w ha t d part of the neuron does the action potential ty pically initiate? axon term inals dendrites som a (cell body ) initial segm ent of the axon a-d During an action potential of a neuron, w ha t directly d q uizlet.com/7971136/ch- 12- ner vous- system- flash- car ds/# 38/55 11/3/13 ch 12 ner vous system flashcar ds | Quizlet causes the different channels to open and close? neurotrans m itter binding to chem ically gated channels calcium ions Sodium and potassium ions the transm em b rane potential (v oltage) a-d What is the b ty pical duration of a nerv e action potential? 20 m s 2 ms 200 m s 0.2 m s a-d Around a w ha t transm em b rane potential does threshold com m only occur? -60 m V -60 V -70 m V q uizlet.com/7971136/ch- 12- ner vous- system- flash- car ds/# 39/55 11/3/13 ch 12 ner vous system flashcar ds | Quizlet +60 m V a-d What ion is c responsible for the depolarizati on of the neuron during an action potential? K+ (potassium ) Cl(chloride) Na+ (sodium ) Ca2+ (calcium ) a-d What ty pe d of m em brane transport causes the depolarizati on phase of the action potential in neurons? activ e transport facilitated...
View Full Document

This note was uploaded on 11/04/2013 for the course CHEM 002 taught by Professor Vidensik during the Fall '10 term at UC Merced.

Ask a homework question - tutors are online