Which muscle(s) is (are) contracted to exhale forcibly?
A) diaphragm alone
B) internal intercostals and rectus abdominus
C) external intercostals and diaphragm
D) rectus abdominis and diaphragm
B) internal intercostals and rectus abdominus
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Why do sprint coaches stress "heel to buttocks" during sprinting?
A. reduces moment of inertia of the leg with respect to the hip B. reduces moment of inertia of the lower leg with respect to the knee C. reduces moment of inertia of the foot with respect to the ankle D. there is no scientific basis for this coaching cue
Which type of congenital heart defect most commonly affects children born with Down syndrome (trisomy 21)?
a. tetralogy of Fallot b. atrioventricular septal defect c. ventricular septal defect d. transposition of great vessels
What do lutein cells develop from?
A) The corona radiata B) The granulosa cells C) The corpus albicans D) The corpus luteum E) The theca interna
Cerebrospinal fluid is secreted by choroid plexuses in the ________ ventricles and reabsorbed by arachnoid villi in the ________
A) lateral, and third; superior sagittal sinus B) lateral, third, and fourth; superior sagittal sinus C) lateral; central canal of the spinal cord D) lateral, third, and fourth; central canal of the spinal cord