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NurseDive Free Nursing Practice Question
An instructor is reviewing the physiology of the female reproductive system with a group of students. In discussing the uterine anatomy, the instructor emphasizes the role of the myometrium. Which statement accurately reflects a function of the uterine myometrium?
A. Responsible for uterine contractions
Responsible for uterine contractions: The myometrium is the thick middle layer of uterine smooth muscle and is the contractile layer responsible for rhythmic uterine contractions (e.g., labor, Braxton–Hicks) .
B. Primary support for the uterus
Primary support for the uterus: Structural support of the uterus is provided mainly by pelvic ligaments and pelvic floor muscles; this is not the primary role of the myometrium.
C. Thickens in response to estrogen
Thickens in response to estrogen: The endometrium (the mucosal lining) thickens cyclically in response to estrogen; the myometrium undergoes hypertrophy in pregnancy but is not the layer described by cyclic thickening of the uterine lining.
D. Covers the exterior portion of the uterus
Covers the exterior portion of the uterus: The outer covering of the uterus is the perimetrium (serosa), not the myometrium.
This question is an excerpt from Nurse Dive's nursing test bank - HUMAN ANATOMY AND PHYSIOLOGY II PROCTORED EXAM (ARIZONA COLLEGE). Take the full exam now
Full Explanation
A. Responsible for uterine contractions: The myometrium is the thick middle layer of uterine smooth muscle and is the contractile layer responsible for rhythmic uterine contractions (e.g., labor, Braxton–Hicks) .
B. Primary support for the uterus: Structural support of the uterus is provided mainly by pelvic ligaments and pelvic floor muscles; this is not the primary role of the myometrium.
C. Thickens in response to estrogen: The endometrium (the mucosal lining) thickens cyclically in response to estrogen; the myometrium undergoes hypertrophy in pregnancy but is not the layer described by cyclic thickening of the uterine lining.
D. Covers the exterior portion of the uterus: The outer covering of the uterus is the perimetrium (serosa), not the myometrium.
Similar Questions
The urinary system contributes to homeostasis through several roles which include: (Select all that apply)
A. Final synthesis step of vitamin K production
Final synthesis step of vitamin K production: The final (and major) synthesis of vitamin K is by gut bacteria and liver processes; the urinary system (kidneys) is not the final synthesis site for vitamin K .
B. Filters the blood, removing wastes
Filters the blood, removing wastes: The kidneys filter blood plasma (glomerular filtration) to remove metabolic wastes and excess substances .
C. Regulates the pH of the body
Regulates the pH of the body: The kidneys conserve or excrete H⁺ and bicarbonate and so play a central role in acid–base balance .
D. Excretion of wastes
Excretion of wastes: By forming urine and eliminating nitrogenous wastes and excess electrolytes/fluid, the urinary system excretes metabolic wastes .
Full Explanation
A. Final synthesis step of vitamin K production: The final (and major) synthesis of vitamin K is by gut bacteria and liver processes; the urinary system (kidneys) is not the final synthesis site for vitamin K .
B. Filters the blood, removing wastes: The kidneys filter blood plasma (glomerular filtration) to remove metabolic wastes and excess substances .
C. Regulates the pH of the body: The kidneys conserve or excrete H⁺ and bicarbonate and so play a central role in acid–base balance .
D. Excretion of wastes: By forming urine and eliminating nitrogenous wastes and excess electrolytes/fluid, the urinary system excretes metabolic wastes .
Select the structures that are part of the larynx. (Select all that apply)
A. Vocal cords
Vocal cords: The vocal cords (vocal folds) are mucosal folds that lie within the larynx and produce sound when they vibrate
B. Thyroid cartilage
Thyroid cartilage: The thyroid cartilage is the largest laryngeal cartilage (forms the “Adam’s apple”) and provides structural support to the larynx
C. Cricoid cartilage
Cricoid cartilage: The cricoid cartilage is a complete ring of cartilage inferior to the thyroid cartilage that forms part of the laryngeal skeleton
D. Laryngopharynx
Laryngopharynx: The laryngopharynx is the lower part of the pharynx (shared passageway for food and air) that lies posterior to the larynx; it is pharyngeal tissue, not a structural component of the larynx itself
E. Epiglottis
Epiglottis: The epiglottis is a flap of elastic cartilage attached to the entrance of the larynx that prevents aspiration during swallowing
F. C- rings
C-rings: “C-rings” typically refer to the incomplete C-shaped cartilaginous rings of the trachea, not the larynx
Full Explanation
A. Vocal cords: The vocal cords (vocal folds) are mucosal folds that lie within the larynx and produce sound when they vibrate
B. Thyroid cartilage: The thyroid cartilage is the largest laryngeal cartilage (forms the “Adam’s apple”) and provides structural support to the larynx
C. Cricoid cartilage: The cricoid cartilage is a complete ring of cartilage inferior to the thyroid cartilage that forms part of the laryngeal skeleton
D. Laryngopharynx: The laryngopharynx is the lower part of the pharynx (shared passageway for food and air) that lies posterior to the larynx; it is pharyngeal tissue, not a structural component of the larynx itself
E. Epiglottis: The epiglottis is a flap of elastic cartilage attached to the entrance of the larynx that prevents aspiration during swallowing
F. C-rings: “C-rings” typically refer to the incomplete C-shaped cartilaginous rings of the trachea, not the larynx
The
Full Explanation
A. Gallbladder: The gallbladder stores and releases bile into the duodenum via the common bile duct when stimulated (e.g., by CCK). It does release a secretion into the duodenum, but it primarily stores bile produced by the liver.
B. Liver: The liver produces bile, which drains via hepatic ducts into the common bile duct and empties into the duodenum -the liver is a primary secretor whose products reach the duodenum.
C. Spleen: The spleen is a lymphoid/hematologic organ (filters blood, immune functions) and does not release digestive secretions into the duodenum.
D. Gastric glands: Gastric glands secrete gastric juice into the stomach lumen (not the duodenum), so they do not release secretions into the duodenum.
E. Pancreas: The exocrine pancreas secretes digestive enzymes and bicarbonate into the duodenum via the pancreatic duct.
F. Intestinal glands: Intestinal glands (crypts of Lieberkühn) secrete intestinal juice directly into the intestinal lumen (including the duodenum), but the most commonly tested paired organs that "release secretions into the duodenum" are the liver (bile) and pancreas (pancreatic juice).