The stomach mucosa is thrown into folds known as villi
Indicate whether the statement is true or false
F
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Early in the development of skin, ectoderm becomes
A. periderm and mesoderm becomes mesenchyme. B. mesenchyme and endoderm becomes periderm. C. the vernix caseosa and mesoderm becomes the stratum basale. D. perichondrium and mesoderm becomes the vernix caseosa.
What is the role of cilia in the respiratory tract?
A) Cilia in the upper respiratory tract direct mucus to the pharynx so that it can be swallowed. Stomach acids subsequently destroy any respiratory irritants trapped in the mucus. B) Cilia trap respiratory irritants such as dust and other small particles. C) Cilia produce mucus. D) Cilia are present on the surface of cells that line the trachea, but they have no defined function in the respiratory system.
The part of the vertebrae that transfers weight along the axis of the vertebral column is the
A) vertebral arch. B) vertebral body. C) articular processes. D) intervertebral space. E) transverse process.
Which of the following is NOT an anatomical component of the elbow?
a) articular capsule. b) ulnar collateral ligament. c) radial collateral ligament. d) anular ligament of the radius. e) tendon of the biceps brachii muscle.