Which gland is commonly known as the “master gland”?
Pituitary
Endocrine
Thyroid
Liver
Correct Answer : A
The pituitary gland is commonly known as the “master gland” because it controls the hormone production of other glands. It secretes nine hormones that regulate growth, metabolism, reproduction, stress response and more.
Choice B. Endocrine is wrong because endocrine is not a specific gland, but a system of glands that produce hormones.
Choice C. Thyroid is wrong because thyroid is a gland that produces hormones that regulate metabolism, growth and development.
It does not control other glands.
Choice D. Liver is wrong because liver is not an endocrine gland, but an organ that performs many functions such as digestion, detoxification and blood clotting.
It does not produce hormones that regulate other glands.
Normal ranges for pituitary hormones vary depending on the type of hormone, age, sex and other factors.
For example, the normal range for growth hormone in adults is 0.4 to 10 nanograms per milliliter (ng/mL), while the normal range for prolactin in women who are not pregnant or breastfeeding is 4 to 23 ng/mL.
HESI A2 Exam Quiz Bank
TEAS 7 Exam Quiz Bank
Find More HESI Questions
HESI A2 Questions: We got the latest updated HESI A2 Questions
100% Money Refund: 100% money back guarantee if you take our full
assessment pass with 80% and fail the actual exam.
Live Tutoring: Fully customized live tutoring lessons.
Guaranteed A Grade: All students who use our services pass with 90%
guarantee.
Related Questions
Correct Answer is C
Explanation
Absorption of calcium from the digestive tract. This is because vitamin D is essential for maintaining bone density and healthy bone growth, and it stimulates calcium and phosphate uptake from the food we eat. Vitamin D is produced when the skin is exposed to ultraviolet rays from the sun, which convert a precursor molecule in the skin to an active form that travels to the liver and kidneys.
Choice A is wrong because elimination of toxins from the blood is not related to vitamin D, but to the kidneys and liver functions.
Choice B is wrong because increase in red blood cell production is not related to vitamin D, but to erythropoietin, a hormone produced by the kidneys.
Choice D is wrong because conservation of water in the plasma is not related to vitamin D, but to antidiuretic hormone, a hormone produced by the pituitary gland.
Correct Answer is B
Explanation
The tibialis anterior muscle is located in the lower leg, on the lateral side of the tibia.
It originates from the lateral condyle and surface of the tibia and the interosseous membrane, and inserts into the medial cuneiform and first metatarsal bones of the foot. It acts to dorsiflex and invert the foot.
Choice A is wrong because the upper arm does not contain the tibialis anterior muscle.
The upper arm contains muscles such as biceps brachii, triceps brachii, and brachialis.
Choice C is wrong because the thigh does not contain the tibialis anterior muscle.
The thigh contains muscles such as quadriceps femoris, hamstrings, and adductors.
Choice D is wrong because the abdomen does not contain the tibialis anterior muscle.
The abdomen contains muscles such as rectus abdominis, obliques, and transversus abdominis.
Correct Answer is D
Explanation
Testosterone is an androgen, a type of sex hormone responsible for developing male characteristics, such as pubic and axillary hair, deepening of the voice, growth of the penis, and sperm production. Testosterone is produced by the testes in males and the ovaries and adrenal glands in females.
Choice A is wrong because oxytocin is a hormone that stimulates uterine contractions during labor and milk ejection during breastfeeding.
It does not affect hair growth at puberty.
Choice B is wrong because progesterone is a hormone that prepares the endometrium for implantation and maintains pregnancy.
It does not affect hair growth at puberty.
Choice C is wrong because prolactin is a hormone that stimulates milk production in the mammary glands.
It does not affect hair growth at puberty.
Correct Answer is D
Explanation
Hemoglobin is a protein in red blood cells that carries oxygen to the cells.
Some possible explanations for the other choices are:
Choice A. Mitochondria. Mitochondria are organelles that produce ATP using the energy in food.They do not carry oxygen to the cells, but they use oxygen to perform cellular respiration.
Choice B. DNA. DNA is a molecule that stores genetic information in the nucleus of the cell.It does not carry oxygen to the cells, but it codes for the synthesis of proteins, including hemoglobin.
Choice C. Aorta. Aorta is a large artery that carries oxygenated blood from the heart to the rest of the body.It does not carry oxygen to the cells directly, but it transports blood that contains hemoglobin and oxygen.
This question was extracted from the actual HESI A2 Exam. Ace your TEAS exam with the actual HESI A2 Exam questions, Start your journey with us today
Visit Naxlex, the Most Trusted HESI Prep Platform With Guaranteed Pass of 90%.
Money back guarantee if you use our service and fail the actual exam. Option of personalised live tutor on your area of weakness.