Answer:
Most correct answer is all of the germ layers
Explanation:
Mucous membranes constitute the innermost layer of a number of hollow organs (i.e.: gastrointestinal tract). They are composed of an epithelial lining which overlies a deeper layer of connective tissue. Typically, each of these components arises from a different germ layer. For instance: the mucous lining of the gut arises from a combination of endoderm-derived epithelium and lateral mesoderm-derived connective tissue. Other mucous membranes may have different origins, for example: The mucous lining of the oral cavity is composed of ectoderm-derived epithelium and underlying connective tissue derived from head mesenchyme (combination of cephalic neural crest and paraxial mesoderm).
Summary:
Mucous Membrane = Epithelium (derived mainly from endoderm, followed by ectoderm, rarely mesoderm) + Underlying Connective Tissue (usually mesoderm)
Pulmonary valve stenosis is a narrowing of the valve located between the lower right heart chamber (right ventricle) and the lung arteries (pulmonary arteries).
Answer:
Platysma.
Explanation:
Platysma is the sheet of muscle that arise from the chest and deltoid muscle. The muscle rises over the clavicle.
Platysma muscle comes upward from the slanting manner by the sides of the neck. This muscle draws the corners of the mouth and lower lip. Hence, platysma muscle is used to express horror and for the pouting.
Thus, the answer is platysma.
Answer:
Voice Recognition Technology.
Explanation:
