TAMU BIOL 320 Test 1 Questions And Answers with Expert Verified Solutions

TAMU BIOL 320 Test 1 Questions And Answers with Expert Verified Solutions Describe the basic functions of simple squamous tissue. - - Areas requiring passive diffusion - Areas not requiring much protection *Found in kidneys, serosae, and linings* Describe the basic functions of simple cuboidal tissue. - Secretion and absorption *Ovaries* Describe the basic functions of simple collumnar tissue. - - Secretion of ENZYMES and lubes - Propulsion of stuffs (cilliated) *Digestive system and resp. system* Describe the basic functions of pseudostratified collumnar tissue. - Areas requiring mucous production Describe the basic functions of stratified squamous tissue. - PROTECTION especially in areas with a lot of abrasion *Oral cavity and anus* Describe the basic functions of transitional tissue. - STRETCHING Differentiate between neural and endocrine signal strength conveyance - Endocrine: Concentration of hormone Neural: Frequency of impulse What are the three ways hormone release is controlled? - - Humoral - Hormonal - Neural Describe up regulation - Upon binding to a hormone, a cell will produce more receptors for that hormone Describe down regulation - Upon binding to a hormone, a cell will destroy existing receptors for that hormone What type(s) of hormones are lipid soluble? - Steroid hormones Steroid hormones are produced by what two major glands? - Gonads and the adrenal cortex Steroid hormones are derived from _________. - Cholesterol What type(s) of hormones are water soluble? - Protein and biogenic Protein hormones are derived from ______. - Amino acids EXCEPT FOR THYROID HORMONE Thyroid hormone behaved most like a _________ type hormone. - Steroid ________ soluble hormones tend to have longer half lives. - Lipid What two organs are largely responsible for removing hormones from the system? - Kidneys: Filter hormones out Liver: Breaks hormones down Briefly describe synergistic hormones. - Hormone A + Hormone B = Larger effect than the simple summation of the two hormones (almost like they are multiplied by one another) Briefly describe permissive hormones. - Hormone A requires the presence of Hormone B to be active/effective Briefly describe antagonistic hormones. - Hormone A negates the effects of Hormone B and vice versa _________ is the adenohypophysis. - Anterior pituitary __________ is the neurohypophysis. - Posterior pituitary Which section of the pituitary is more neural in function and which is more hormonal in function? - Adenohypophysis (anterior) = Hormonal Neurohypophysis (posterior) = Neural What hormones are released by the posterior pituitary gland? - Oxytocin and anti-diuretic hormone Explain the GHRH pathway - 1) Hypothalamus releases GHRH to ant. pit. 2) Ant. pit. releases GH to body 3) GH affect all body tissues Explain the GnRH pathway - 1) Hypothalamus releases GnRH to ant. pit. 2) Ant. pit. releases gonadotropins (LH and FSH) 3a) LH targets ovary 3b) FSH targets testes 3c) Both LH and FSH promote follicular maturation Explain the PRH pathway - 1) Hypothalamus releases PRH to ant. pit. 2) Ant. pit. releases PRL 3) PRL target mammary tissue