NURSING 324 PHYSICS 1 2022

SCIN 132 WEEK 6 QUIZ. Part 1 of 8 - 9.0/ 18.0 Points Question 1 of 32 The primary hormones produced by the ovaries are . 3.0/ 3.0 Points A. Prolactin B. Estrogen C. Testosterone D. FSH and LH E. Progesterone Feedback: Good work; your answer is correct! Question 2 of 32 Cushing’s disease is a disorder caused by . 3.0/ 3.0 Points A. abnormally low levels of aldosterone B. abnormally low levels of cortisol C. abnormally high levels of aldosterone D. abnormally high levels of epinephrine E. abnormally high levels of cortisol Feedback: Good work; your answer is correct! Question 3 of 32 The parathyroid glands are small structures located on the posterior thyroid gland that produce parathyroid hormone (PTH), which regulates blood levels. 3.0/ 3.0 Points A. potassium B. calcium C. insulin D. adrenalin E. thyroid hormone Feedback: Good work; your answer is correct! Question 4 of 32 The hormones of the human body can be divided into which of the following major group(s)? 0.0/ 3.0 Points A. Sex hormones B. CNS hormones C. Hormones derived from amino acids D. Hormones derived from lipids E. C and D above are correct. Feedback: The hormones of the human body can be divided into two major groups on the basis of their chemical structure. Hormones derived from amino acids include amines, peptides, and proteins. Those derived from lipids include steroids. Question 5 of 32 The gonads produce what class of hormones? 0.0/ 3.0 Points A. catecholamines B. neurotransmitters C. amine hormones D. peptide hormones E. steroid hormones Feedback: Gonads produce steroid hormones like estrogen and testosterone. Question 6 of 32 Hormones produced and released from sex organs include which of the following? 0.0/ 3.0 Points A. estrogen and progesterone B. testosterone C. inhibin Power D. FSH and LH by E. A, B, and C are all correct Feedback: FSH and LH are produced by the pituitary gland. Part 2 of 8 - 6.0/ 15.0 Points Question 7 of 32 All of the following statements concerning oogenesis are correct EXCEPT: 3.0/ 3.0 Points A. Ova develop from stem cells called oogonia. B. Upon fertilization, a secondary oocyte completes meiosis II C. Oogenesis occurs from puberty until death. D. At birth, a female infant’s ovaries contain primary oocytes. E. One oogonium produces one and only one ovum Feedback: Good work; your answer is correct! Question 8 of 32 If the average length of a woman’s ovarian cycle is 30 days, the average length of her uterine cycles is most likely days. 0.0/ 3.0 Points A. 10 B. 21 C. 7 D. 15 E. 30 Feedback: Anterior pituitary hormones (FSH and LH) cause the cyclical release of estrogen and progesterone by the ovaries every 28 days (with variations between women). Ovarian hormones cause uterine cycle endometrial changes. Thus, ovarian and uterine cycles are coordinated and last about the same number of days in a particular woman. Question 9 of 32 After ovulation, the secondary oocyte is drawn from the peritoneal cavity into the uterine tube by . 0.0/ 3.0 Points A. microvilli B. mucous C. flagella D. fimbriae E. cilia Feedback: The long, fingerlike fimbriae are projections on the ends of the uterine tubes which wave rhythmically and sweep the secondary oocyte and peritoneal fluid into the uterine tube. Question 10 of 32 Which layer of the uterus is shed during menstruation? 0.0/ 3.0 Points A. myometrium B. basilar zone of endometrium C. functional zone of endometrium D. serous membrane E. perimetrium Feedback: If fertilization does not occur, progesterone levels decline as the corpus luteum degenerates, causing the innermost layer of the uterus, a mucous membrane called the functional layer of the endometrium, to die and be shed with blood as menstrual flow. Question 11 of 32 During the second half of the ovarian cycle, progesterone is secreted by the . 3.0/ 3.0 Points A. corpus luteum B. mons pubis C. primary follicle D. anterior pituitary gland E. posterior pituitary gland Feedback: Good work; your answer is correct! Part 3 of 8 - 15.0/ 18.0 Points Question 12 of 32 “False labor” or Braxton Hicks contractions are weak, irregular contractions of the myometrium triggered by . 3.0/ 3.0 Points A. low levels of oxytocin B. high levels of prostaglandin C. low levels of progesterone D. high blood levels of estrogen E. high levels of testosterone Feedback: Good work; your answer is correct! Question 13 of 32 How is a zygote transported to the uterus? 3.0 / 3.0 Points A. the uterine tube is lined with cilia and undergoes peristalsis B. gravity C. the zygote migrates by ameboid movement D. the zygote has a flagellum E. the uterine tube is lined with microvilli Feedback: Good work; your answer is correct! Question 14 of 32 Which part of a mature sperm contains enzymes which digest the coverings surrounding the ovulated oocyte? 3.0 / 3.0 Points A. acrosome B. nucleus C. nucleus D. middle piece E. flagellum Feedback: Good work; your answer is correct! Question 15 of 32 The first stage of labor is marked by dilation of the uterine . 3.0/ 3.0 Points A. vagina B. fundus C. cervix D. neck E. body Feedback: Good work; your answer is correct! Question 16 of 32 The inner cell mass of the trophoblast developments into the primary germ layers which are named the , , and . 3.0/ 3.0 Points A. epithelium, muscle, nervous, connective B. zygote, morula, blastocyst C. endoderm, ectoderm, mesoderm D. zygote, embryo, fetus E. endometrium, myometrium, perimetrium Feedback: Good work; your answer is correct! Question 17 of 32 The placenta is formed by endometrial tissue of the uterine lining and the . 0.0 / 3.0 Points A. inner cell mass of the trophoblast B. myometrium of the uterus C. amnionic fluid D. chorionic villi of the trophoblast E. yolk sac Feedback: Projections from the trophoblast portion of the blastocyst, called chorionic villi, combine with uterine endometrial tissue to form the placenta, the structure by which maternal nutrients and oxygen are delivered to the developing embryo and wastes are carried away. Part 4 of 8 - 6.0/ 6.0 Points Question 18 of 32 Semen is composed mostly of fluid secreted from this structure. 3.0/ 3.0 Points A. testes B. bulbourethral glands C. seminal vesicles D. prostate gland Feedback: Correct. Good job! Question 19 of 32 What is the placenta responsible for? 3.0/ 3.0 Points A. Prevents the fetus from drying out B. Provides shock absorption for the fetus C. Regulation of fetal body temperature D. Provides the exchange of nutrients and wastes between the mother and fetus Feedback: Correct. Good job! Part 5 of 8 - 3.0/ 9.0 Points Question 20 of 32 What is the best practice in formatting spreadsheets? 0.0/ 3.0 Points A. Organize data in vertical columns with first row header B. Organize data in horizontal rows with first row header C. Organize data in horizontal rows with first column header D. Organize data in vertical columns with first column header Feedback: Please see section in the lesson titled “Use Vertical Columns, Borders, and Colors to Visually Organize Data”. It is essential that data is organized logically, especially very large data sets that may have over one million cells Question 21 of 32 Which of the following symbols are needed for Microsoft Excel to perform a calculation? 3.0/ 3.0 Points A. ; B. = C. / D. : Feedback: Correct! Performing calculations is an extremely useful tool available in Excel to assist in data analysis. It is beneficial users become familiar with the proper syntax to minimize error and increase efficiency in analyzing data. Question 22 of 32 Which chart type displays the correlation between two variables by connecting data points to show 0.0/ 3.0 Points a trend? A. Bar B. Scatterplot C. Pie D. Line Feedback: Please see section in the lesson titled “Commonly Used Graphs in Data Visualization”. Choosing the most appropriate chart type for displaying data is extremely important as visualizations are critical for decision making and understanding results. Part 6 of 8 - 18.0/ 21.0 Points Question 23 of 32 If the resting membrane potential of a neuron is -70 mV and the threshold voltage of that neuron 9s 3.0/ 3.0 Points -50 mV, then the neuron must be depolarized by a minimum of mV before an action potential is generated. A. 10 mV B. 15 mV C. 20 mV D. 30 mV Feedback: Correct! Question 24 of 32 What effect did decreasing the extracellular sodium have on the resting membrane potential? 3.0/ 3.0 Points A. The resting membrane potential became less negative. B. The resting membrane potential disappeared. C. Only a small change occurred, because the sodium channels were mostly open. D. Only a small change occurred, because the resting neuron is not very permeable to sodium. Feedback: Correct! Question 25 of 32 During the absolute refractory period, a neuron would need to be depolarized by mV before another action potential could be generated. 3.0/ 3.0 Points A. 50 mV B. 75 mV C. 100 mV D. Another action potential cannot be generated Feedback: Correct! Question 26 of 32 What is the major cation found inside the the typical nerve cell at rest? 3.0/ 3.0 Points A. sodium B. acetylcholine C. chloride D. potassium Feedback: Correct! Question 27 of 32 The period of time when the neuron is totally insensitive to further stimulation and cannot generate another action potential is 3.0/ 3.0 Points A. repolarization B. absolute refractory period C. membrane potential D. relative refractory period Feedback: Correct! Question 28 of 32 The channels that provide for the movement of potassium in the resting neuron are . 0.0 / 3.0 Points A. voltage gated B. chemically gated C. leakage and chemically gated D. leakage Feedback: Learning Objective: Describe the cellular transport mechanisms responsible for establishing the resting membrane potential. Please review Lab Exercise 3, Activity 1. Question 29 of 32 How did increasing the stimulus voltage in the simulation affect the action potential? 3.0/ 3.0 Points A. no change to the action potential B. a decrease in the rate of propagation of the action potential C. an increase in the rate of propagation of the action potential D. an increase in the size of the action potential Feedback: Correct! Part 7 of 8 - 8.0/ 8.0 Points Answer the following question in your own words without using any resources. Your answer should be written in complete sentences using correct grammar, spelling, and terminology. Question 30 of 32 Define the term "action potential." An action potential is the electrical potential of a muscle or nerve cell when exposed to a stimulant. Feedback: Learning Objective: Define threshold and action potential. Please review Lab Exercise 3, Activity 3. Comment: Good! Question 31 of 32 Briefly explain how the sodium-potassium pump helps to maintain the resting membrane potential. 4.0/ 4.0 Points 4.0 / 4.0 Points Sodium-potassium pump helps to maintain the resting membrane potential by keeping the membrane in a state of negative charge to help maintain resting membrane potential. Feedback: Learning Objective: Describe the cellular transport mechanisms responsible for establishing the resting membrane potential. Please review Lab Exercise 3, Activity 1. Comment: Good. The sodium-potassium pump moves sodium out of the cell and potassium into the cell, restoring the resting membrane potential. Part 8 of 8 - 5.0/ 5.0 Points Instructions: 1. Click on the Browse button to find the lab report on your computer. 2. Click on the Upload button to attach your lab report to the quiz. Question 32 of 32 Attach your completed Lab Exercise 3, Activity 5: The Action Potential: Measuring Its 5.0/ 5.0 Points Absolute and Relative Refractory Periods lab report (PEX-03-05_FirstnameL) as the answer to this question. PEX-03-05_PeterV (226.04 KB) Comment: Lab received and full credit awarded Sakai Copyright The Apereo Foundation. All rights reserved. Portions of Sakai are copyrighted by other parties as described in the Acknowledgments screen.