In general, the mechanical stresses on bones that result from exercise tend to weaken them and lead to more frequent fractures
Indicate whether this statement is true or false.
FALSE
You might also like to view...
Which of the following statements regarding the control of parturition is FALSE?
A. Coordinated uterine contractions cause the cervix to dilate. B. Oxytocin secretion is stimulated by cervical dilation. C. Stretching of the myometrium is one signal that begins uterine contractions. D. Oxytocin decreases the expression of myometrial estrogen receptors. E. Prostaglandins stimulate myometrial contractions.
This figure shows a lateral view of the muscles of facial expression. What muscle does number 4 indicate?
A. Temporalis B. Masseter C. Buccinator D. Sternocleidomastoid E. Platysma
In order to trigger the release of neurotransmitter from a neuron terminal, calcium ions
A. bind to ion channels on the neuron membrane and cause them to open for the transmitter. B. bind to proteins on the surface of synaptic vesicles. C. exit the synaptic knob through diffusion. D. penetrate the synaptic vesicles and bind to molecules of neurotransmitter.
Smooth muscle
A. has a resting membrane potential that is more negative than skeletal muscle fibers. B. responds in an all-or-none fashion. C. has fast waves of depolarization. D. depolarizes when both Na+ and Ca2+ diffuse into the cell. E. has fast waves of repolarization.