Answer:
d. with just a few nights of sleep deprivation, but recovery will take more than a month of normal sleep
Explanation:
During sleep, the body heals itself, wear and tear of cells occur, and the chemical balance of hormones and neurotransmitters is restored. During sleep, the body prepares cytokines, that are protection and infection-fighting substances. Sleep deprivation prevents the production of cytokines and the ability to fight and prevent infections decreases. Sleep also enhances the T-cell responses which are associated with lymphocyte production pathway. Hence, people who remain awake have a lesser T-cell count due to decrease activation of T-cells. Hence, a few nights of sleep deprivation makes the immune system lack behind in the T-cell response generation. This low T-cell activity does not only impede the production of immune system cells but also reduces the functioning of existing cells such as decrease in cytokine functioning. Hence, the entire immune system cells needs a double amount of sleep functioning to keep track of immune system responses and rebuild the cells.
Answer:
You can ask from an experienced doctor or someone good in that field or you can search the internet for it
Answer:
The correct answer is B.
Explanation:
During the follicular phase (first half of female cycle), follicles in the ovary begin developing under the<u> influence of </u><u>FSH.</u> <em>The follicle that acquires more FSH receptors will become </em><em>dominant</em> and will produce more estrogen and inhibin hormone than the others. Inhibin will reduce FSH level and as a result the other follicles will fail to keep growing. At this stage the dominant follicle will become FSH independent.
Estrogen produced by the dominant follicle will stimulate LH secretion. After approximately 24-36 hours from when LH reaches its peak level, the dominant follicle releases an ovocyte. <em>This event is called ovulation.</em>
Confirmatory Tests vary, and may be wrong from time to time. As time passes, the test is not as reliable as stated. If the so called "blood" is on a leather surface, blood isn't too prone to sticking to leather, so it may (or may not) be blood.
Answer:
types 4,8,10
Explanation:
1.
Fibril-forming collagens (I, II, III, V, XI, XXIV, XXVII);
2.
Fibril-associated collagens with interrupted triple helices (FACITs) (IX, XII, XIV, XVI, XIX, XX, XXI, XXII). The FACITs do not form fibrils by themselves but they are associated with the surface of collagen fibrils.
3.
Network-forming collagens (IV, VIII, X) form a pattern in which four molecules assemble via their amino-terminal 7S domain to form tetramers while two molecules assemble via their carboxy-terminal NC1 domain to form NC1 dimers
4.
Membrane collagens (XIII, XVII, XXIII, XXV)
