Answer:
The correct answer will be:
1. Acetylcholine binds to receptors on the motor end plate
2. Chemically-regulated ion channels open, causing depolarization
3 End plate potentials trigger action potential(s).
4. Transverse tubules convey potentials into the interior of the cell
5. Ca++ is released from the sarcoplasmic reticulum
6. Ca++ binds to troponin, pulling on tropomyosin
7. Binding sites on actin are uncovered, allowing myosin to bind and carry out power strokes
8. Force increases.
9. Ca++ is pumped (re-sequestered) into the sarcoplasmic reticulum
10. Force decreases.
Explanation:
The muscle contraction is a highly controlled mechanism which begins at the neuromuscular junction with the release of the acetylcholine neurotransmitter. This neurotransmitter causes the depolarization of the membrane by binding to the receptors of the motor end plate which generates an action potential. This action potential is transmitted via T-tubules from sarcolemma to the sarcoplasmic reticulum.
The sarcoplasmic reticulum releases calcium ions which binds to the troponin protein. This troponin removes the protein tropomyosin from the actin causing the rotation of the tropomyosin exposing the binding sites for myosin. The myosin binds to the actin using energy from the ATP which pulls the actin causing contraction. Another ATP binds the myosin head which weakens the bond between myosin and actin which releases the myosin which decreases the force between them decreases and the muscles relax.
Answer:
Explanation: Researching on humans isn't something you can typically do because there are typically ethical issues with testing on humans.
False as the rest of the world and I swear to my mum
Answer:
It could possibly be a Heavy period. Heavy periods can have causes that aren't due to underlying disease. Examples include regular variation among individuals, hormonal imbalance, IUD use, or medication side effects.
Answer:
The nursing instructor is pointing out the various complcations which can occur during pregnancy in women with diabetes mellitus. The instructor determines the session is successful after the students correctly choose which complication that can occur if the diabetes is not kept under control?
A. hydramnios
B. hypotension
C. Placenta previa
D. Cerebral Vascular accident
Explanation:
Out of control diabetes can result in hyperglycemia which tend to lead to excessive amniotic fluid( hydramnios or poly hydramnios) because of Osmotic presure fluid shifts. A small placenta is more common than placenta previa. the woman may experience hypertension verus hypotension if the diabetes is not controlled. cerebral vascular accidents are usually not related to diabetes but to circulatory issues.
