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Chemical Coordination and Integration Test 15

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Chemical Coordination and Integration Test 15
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  • Question 1
    1 / -0
    Hormones of hypothalamus are known as
    Solution
    A. Regulatory hormones.
    Solution: Hypothalamic hormones, are released from the median eminence, a prolongation of the hypothalamus, into the hypophyseal portal system. It carries them to the anterior pituitary where they exert their regulatory functions. They stimulate or inhibit the release and synthesis of the anterior lobe hormones. They are better referred to as regulatory hormones than as releasing hormones.
  • Question 2
    1 / -0
    The part of brain which is known as master of master gland
    Solution
    Cerebrum serves to receive sensory inputs and helps to interpret the received stimulus.
    Cerebellum serves to coordinate the voluntary movements of skeletal muscles as well as posture, balance and equilibrium. 
    The pituitary gland is an endocrine gland which secretes four tropic hormones (FSH, LH, ACTH and TSH) that stimulate the synthesis and/or secretion of hormones from their target endocrine glands. Therefore, the pituitary gland is also known as master gland. 
    Hormones of hypothalamic (hypothalamic releasing hormones and hypothalamic inhibiting hormones) are known as regulatory factors or regulatory hormones as they regulate the anterior pituitary hormones (LH, ACTH, TSH etc) via negative feedback control mechanism. Since hypothalamus regulates the tropic hormones of the master gland, the pituitary gland, it is known as the master of master gland.
    Therefore, the correct answer is option A.
  • Question 3
    1 / -0
    Animals with only two germ layers are known as ________
  • Question 4
    1 / -0
    The hormone responsible for changes in female at puberty is
    Solution
    Estrogens are primary female sex hormones that serve in maturation and maintenance of sex organs, development of female secondary sexual characters and initiation of menstrual cycle. Likewise, progesterone prepares the body for pregnancy and maintain the uterus if pregnancy occurs. Along with estrogens, progesterone helps initiate menstrual cycle in girls entering the puberty. Both enzymes work synergistically. 
    Testosterone is male sex hormone which is responsible for development of male secondary sexual characters in males. 
    Oxytocin (OT) stimulates uterine muscle contraction during childbirth and initiates release of milk by mammary gland.
    Therefore, the correct answer is option A.
  • Question 5
    1 / -0
    The pancreas located just ........ the stomach.
    Solution
    The pancreas is a 6-inch long gland. It is present in the lower abdominal region below the stomach. One right side, It lies below the stomach and on the left side, it is connected to the small intestine. The first part of the small intestine duodenum is connected to it.
    So the correct option is A.

  • Question 6
    1 / -0
    Estrogen is secreted by ________.
    Solution
    Estrogen is produced by placenta and follicular cells in the ovary. The corpus luteum formed after rupturing of the graffian follicle also secretes estrogen. The estrogen enhance the branching of blood vessels in the endometrium layer of the uterus and mammary glands.
    So, the correct answer is option D.
  • Question 7
    1 / -0
    Somatotropins are secreted by
    Solution
    Somatotropins, also known as growth hormone, are secreted by anterior pituitary which target soft tissues and bones and serves to stimulate cell division, protein synthesis and bone growth. Option D is correct. 
  • Question 8
    1 / -0
    A person is having a problem with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly?
    Solution
    The hormone of the parathyroid gland is called parathormone. The main function of parathormone is to regulate the metabolism of calcium and phosphorus in the body. Thus the problem with calcium and phosphorus metabolism indicates abnormal functioning of parathyroid gland. Hence, option D is the correct answer. 

  • Question 9
    1 / -0
    Calcium level is controlled by
    Solution
    The thyroid  gland secretes three different type of hormones such as  thyroxine (T4) and triiodothyronine (T3), increase the body's metabolic rate and the third hormone is calcitonin. This helps to control the levels of calcium and phosphorus in the blood. These minerals are needed to keep bones strong and healthy. The parathyroid glands release a hormone called as parathyroid hormone which helps to control the levels of three minerals in the body i.e., calcium, phosphorus and magnesium
    Therefore, the correct answer is option D.
  • Question 10
    1 / -0
    The pancreas is a large ........ gland.
    Solution
    The pancreas which is located deep in the abdomen is a large cream colored gland. While, one part is sandwiched between the stomach and the spine, the other part is nestled in the curve of the duodenum.
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