Bio 168 Week 1 Pt. 1 (Exam 1) Quizlet Exam Questions PDF
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This document contains 20 multiple-choice questions on the endocrine system, focusing on definitions, functions, and interactions of various hormones and glands. The questions assess understanding of concepts related to hormone release, targets, and the role of different stimuli. It seems to be part of a larger exam, Bio 168 Week 1 Pt. 1.
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1/28/25, 9:05 PM BIO 168 Week 1 Pt. 1 (Exam 1) | Quizlet Name: Score: 20 Multiple choice questions Definition...
1/28/25, 9:05 PM BIO 168 Week 1 Pt. 1 (Exam 1) | Quizlet Name: Score: 20 Multiple choice questions Definition 1 of 20 Anti-diuretic hormone (don't pee hormone) ACTH ADH TSH RENIN Definition 2 of 20 Tissues with receptors for a specific hormone Target cells Spherocytosis Endocrine system Exocrine glands Definition 3 of 20 Quicker response but shorter lasting time Nervous system responses Nervous system facts Heart rate variability Endocrine responses https://quizlet.com/test/bio-168-week-1-pt-1-exam-1-562997424 1/9 1/28/25, 9:05 PM BIO 168 Week 1 Pt. 1 (Exam 1) | Quizlet Definition 4 of 20 GDP = Off GTP = On Exocrine glands Humeral stimuli Steroid (lipid) GDP & GTP Definition 5 of 20 - Multiple hormones may act on the same target at the same time - - Permissiveness - - Synergism - - Antagonism Hormone Release Steroid or Steroid-Like hormones (Thyroid) Hormone interaction at Target Cells Target cell activation depends on https://quizlet.com/test/bio-168-week-1-pt-1-exam-1-562997424 2/9 1/28/25, 9:05 PM BIO 168 Week 1 Pt. 1 (Exam 1) | Quizlet Term 6 of 20 Endocrine system is ___________ - Controlled by negative feed-back system - - Increased hormone effects on target organs can inhibit further hormone release - Levels vary only within narrow, desirable range - Hormone release is triggered by Endocrine gland stimuli - A ductless system - Only blood vessels Quicker response but shorter lasting time - Multiple hormones may act on the same target at the same time - - Permissiveness - - Synergism - - Antagonism Definition 7 of 20 - Neurons release neurotransmitters into a synapse, affecting postsynaptic cells - Glands release hormones into the bloodstream - - Only target cells of hormone response Endocrine system Endocrine system works with nervous system Endocrine system vs Nervous system Endocrine system facts https://quizlet.com/test/bio-168-week-1-pt-1-exam-1-562997424 3/9 1/28/25, 9:05 PM BIO 168 Week 1 Pt. 1 (Exam 1) | Quizlet Definition 8 of 20 - Controlled by negative feed-back system - - Increased hormone effects on target organs can inhibit further hormone release - Levels vary only within narrow, desirable range - Hormone release is triggered by Endocrine gland stimuli Hormone interaction at Target Cells Hormone Release Hormone Activity Hormone Recptors Definition 9 of 20 - Endocrine glands are stimulated to synthesize and release hormones in response to one of three stimuli: - - Humeral stimuli - - Neural stimuli - - Hormonal stimuli Neuroendocrine organ Endocrine Gland stimuli Responses from Target Cells Exocrine glands https://quizlet.com/test/bio-168-week-1-pt-1-exam-1-562997424 4/9 1/28/25, 9:05 PM BIO 168 Week 1 Pt. 1 (Exam 1) | Quizlet Definition 10 of 20 - Hormones can be removed from blood by... - Degrading enzymes, - Kidneys, or - Liver Endocrine tissue Hormone Activity Hormone Recptors Hormonal stimuli Definition 11 of 20 - Hormone release caused by neural input - Stimulus: Action potentials in preganglionic sympathetic fibers to the adrenal medulla - Response: Adrenal medulla cells secrete epinephrine and norepinephrine Hormonal stimuli Humeral stimuli Permissiveness Neural stimuli https://quizlet.com/test/bio-168-week-1-pt-1-exam-1-562997424 5/9 1/28/25, 9:05 PM BIO 168 Week 1 Pt. 1 (Exam 1) | Quizlet Definition 12 of 20 - Reproduction → (Follicle-stimulating hormone/ luteinizing hormone) - Growth and development → (Releases growth hormone) - Maintenance of electrolyte, water, and nutrient balance of blood → (Aldosterone/ ADH/ ADP) - Regulation of cellular metabolism and energy balance → (Thyroid gland T3/T4) - Mobilization of body defenses → (Thymus gland, Releases T-cells) Endocrine system vs Nervous system Endocrine system controls and integrates Endocrine system works with nervous system Endocrine system facts Definition 13 of 20 - Though hormones circulate systemically, only cells with receptors for that hormone are affected - Target cells - Hormones alter target cell activity Endocrine hormones Hormonal stimuli Permissiveness Action of Hormones Definition 14 of 20 - Neurons trigger the secretion of the neuro-hormones making their way into blood - - Ex: Hypothalamus Non-Steroid Hormones Hormone Activity Neuroendocrine organ Endocrine Gland stimuli https://quizlet.com/test/bio-168-week-1-pt-1-exam-1-562997424 6/9 1/28/25, 9:05 PM BIO 168 Week 1 Pt. 1 (Exam 1) | Quizlet Definition 15 of 20 Responses slower but longer lasting than nervous system responses Endocrine responses Behavioral responses Cardiovascular responses Autonomic responses Definition 16 of 20 - Secrete Non-hormonal substances into ducts/tubes - - Ex: sweat & saliva Endocrine Gland stimuli Endocrine tissue Exocrine glands Endocrine hormones Definition 17 of 20 Controls body temp, food intake, water balance, sleep-wake cycle etc. Link between nervous and endocrine systems Receives input from cerebral cortex, thalamus, limbic systems Controls pituitary gland secretions Neurons produce releasing or inhibiting hormones acting on anterior pituitary Hypothalamic Hormones Signal Amplification Responses from Target Cells Hormone Recptors What the Hypothalamus does https://quizlet.com/test/bio-168-week-1-pt-1-exam-1-562997424 7/9 1/28/25, 9:05 PM BIO 168 Week 1 Pt. 1 (Exam 1) | Quizlet Definition 18 of 20 Hormones transported in Blood Autocrine hormones Endocrine glands Endocrine hormones Endocrine responses Definition 19 of 20 Hormonal stimuli Responses from Target Cells Hormones from Hypothalamus What the Hypothalamus does Definition 20 of 20 - Made from amino acids or peptides - Water-soluble & do NOT pass through plasma membrane - Bind cell surface receptors - Use second messengers - Generally FASTER acting / immediate Hormonal stimuli Action of Hormones Amino Acid (Protein) Non-Steroid Hormones https://quizlet.com/test/bio-168-week-1-pt-1-exam-1-562997424 8/9 1/28/25, 9:05 PM BIO 168 Week 1 Pt. 1 (Exam 1) | Quizlet Privacy Terms English (USA) https://quizlet.com/test/bio-168-week-1-pt-1-exam-1-562997424 9/9