Exam 7 Flashcards
Fast-glycolytic myofibers will increase in _____ with long-term ____ exercise
diameter, anaerobic
On removing a two-month old cast from your forearm, you correctly tell the doctor that “your fraction of its former size” forearm is due to extended lack of _____ leading to the muscle undergoing ____
cross-bridging, atrophy
When consistently used aerobically for a year, you will most typically build ______ of those muscles. Because of this process, your ______ will not look the same as before the start of the year
Vascularization, circulatory system
The ___ pituitary gland contains the axon terminals of axons that are present in the ___
posterior,infundibulum
While walking across the Oval with Brutus, Carmen stepped on a sharp rock and immediately pulled her foot away from the rock. What was responsible for Carmen’s action?
Carmen’s action is a spinal reflex called the withdrawal response and includes the inhibition of her extensor’s motor neurons
From a classic sitting position, you decide to raise your lower leg so as to touch the chair immediately in front of you. To raise your foot from the floor up to touch the chair, you will ___ your flexor muscle
Neither stimulate nor inhibit
At a recent family dinner, your mother gives you a lovely hunk f the leg meat from a turkey. You tell her that the majority of these muscle cells generated energy _______ and there is ___ myoglobin present
Aerobically, lots of
T3 and T4 are ___ endocrines and are ____
Amine, nonpolar
Relaxation of smooth muscle involves returning ____ to the _____ via _____, ______ involve removing calcium bound to _____, does not involve changing the position of ____, and requires the closing of _______ in the plasma membrane
Calcium, Interstital fluid, carrier-mediated transporters, does not, troponin, tropomyosin, calcium channels
If someone wanted to reduce the effects of epinephrine, he could trigger the _______
He could trigger the endocytosis of its receptors, increase its excretion via the kidneys, and/or increase of its catabolism in the plasma
To decrease the effectivenesss of a hydrophobic endocrine, we should ______
Catabolyze its receptor
Calcium activates calmodulin which activates _______which activates , and myosin is ______ and the head _____
myosin light chain kinase. phosphorylated, immediately deflexes
Otago, the food-loving dog, enjoys her treats. Which is a correct statement about what happens when she takes a treat from Katie’s hand and then digests it?
Proprioception system is necessary for her to move her head to the treat location, both efferent and afferent neurons are required to obtain the treat, and, in her small intestine, the muscle contractions will be synchronized due to gap junctions
Steroid endocrines _____ to travel through the plasma, the adrenal medulla releases an ___, and the peptide endocrine, ____, is not always released immediately after it is synthesized
Do not need a prohormone, amine endocrine, insulin
Calcium can enter smooth muscle through ______, calcium binding to calmodulin ____ cause the movement of the tropomyocin and like skeletal muscle, the energy from ATP cause _____
Voltage-gated and ligand-gated channels, does not, myosin heads to lift and interact with actin
