What increases air turbulence to extract dust and other debris from air traveling through the nasal cavity?
A) posterior nares B) septal cartilage
C) vestibule D) nasal conchae and meatuses
Answer: D
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The placenta releases:
a. chorionic gonadotropins b. progesterone c. estrogen d. all of the above
What does label H represent?
A) complement binding site
B) antigen binding site
C) antigenic determinant sites
D) macrophage binding site
E) antibodies
Which are differences between cardiac muscle tissue and skeletal muscle tissue?a: The sarcoplasmic reticulum in cardiac muscle is less extensive.b: The sarcoplasmic reticulum in cardiac muscle is more organized.c: Cardiac muscle has intercalated discs; skeletal muscle does not.d: Cardiac muscle has 1 or 2 nuclei per cell; skeletal muscle has multiple nuclei per cell.e: Cardiac muscle has more well-defined terminal cisternae.
A. a, b, e B. a, c, d C. a, c, e D. b, c, e E. b, d, e
Which of these movements is NOT caused by contraction of the erector spinae muscles?
a. flexion of the vertebral column b. lateral flexion of the vertebral column c. extension of the vertebral column d. rotation of the vertebral column