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BIO 161
Exam 2: Endocrine System
Question | Answer |
---|---|
what glands make up the endocrine system? | Endocrine and Exocrine |
What is the difference between endocrine and exocrine glands? | endocrine secretes into the blood exocrine ducts lead to cavities outside of the body |
What cells are able to respond to hormones? | target cells with hormone specific receptors |
What are the types of hormones? | Lipid soluble, Water soluble |
Where is the receptor for lipid soluble cells? | inside the cell |
Where is the receptor for water soluble cells? | in the membrane |
What is the permeability of lipid soluble cells? | are able to cross the membrane |
What is the permeability of water soluble cells? | not able to cross the membrane |
What is an example of lipid soluble hormones? | steroids |
How does a negative feedback system work? | once a normal level us reached, hormone production will shut off |
How does a positive feedback system work? | hormone production continues to get higher and higher during a specified event like child birth |
What controls the Anterior Lobe of Pituitary Gland? What does it do? | controlled by hypothalamus via releasing and inhibitory hormones causes the release of hormones hormones are produced here |
What controls the Posterior Lobe of Pituitary Gland? What does it do? | Controlled by hypothalamus via action potentials action potential causes release of hormones |
What are the hormones release by the Posterior Lobe of Pituitary Gland? | ADH, OT |
What are the hormones release by the Anterior Lobe of Pituitary Gland? | TSH, ACTH, PRL, GH, FSH, LH |
Antidiuretic Hormone (ADH)- Target cell? Function? | Kidney decrease urine production |
Oxytocin (OT)- Target cell? Function? | Mammary glands, uterine muscle release of milk, contractions |
Thyroid-Stimulating Hormone (TSH)- Target cell? Function? | Thyroid gland production/ release of TSH |
Adrenocorticotropic Hormone (ACTH)- Target cell? Function? | Adrenal gland release/ production of hormones from adrenal cortex |
Prolactin (PRL)- Target cell? Function? | Mammary glands milk production |
Growth Hormone (GH)- Target cell? Function? | bones, muscle growth |
Follicle-Stimulating Hormone (FSH)- Target cell? Function? | Ovaries, testes egg maturation, sperm production |
Luteinizing Hormone (FSH)- Target cell? Function? | Ovaries, testes ovulation, testosterone production |
What issue of the endocrine system is related to giantism? | pituitary gland- too much GH during childhood |
What issue of the endocrine system is related to acromegaly? | pituitary gland- too much GH during adulthood |
What issue of the endocrine system is related to dwarfism? | pituitary gland- too little GH during childhood |
What issue of the endocrine system is related to Diabetes Insipidus? | pituitary gland- too little ADH causes excessive water loss in urine |
What are the hormones of the thyroid gland? | Thyroid hormone, calcitonin |
Thyroid hormone- Target cells? Function? | all cells regulates ATP production |
Calcitonin- Target calls? Function? | Bone decreases blood calcium levels if high |
What issue of the endocrine system is related to cretinism? | Thyroid gland- |
What issue of the endocrine system is related to hypothyroidism? | (myxedema) decrease in thyroid hormone causes weight gain, cold, fatigue |
What issue of the endocrine system is related to hyperthyroidism? | (graves disease) increase in thyroid hormone causes weight loss, nervous energy, rapid HR, bulging eyes |
Parathyroid hormone- Target cells? Function? | Bone increases blood calcium levels |