Question

glands swal glands a clands can also be called A sebaceous B) holocrine sudoriferous cutaneous endocrine D) Cyanosis usually is the result of a reduction in A) melanin B) hemoglobin oxygen levels the number of blood vessels E) blood pressure 22. Which connective tissue type is composed of cells called chrondrocytes and is surrounded by a covering called perichondrium? A) hyaline cartilage B) dense irregular connective tissue C) bone D) areolar connective tissue E) fibrocartilage 23. The most plausible explanation for the "smoker's cough" that develops when the tracheal epithelium changes from pseudostratified columnar to stratified squamous is that A) this change is accompanied by tumors that irritate the upper respiratory tract B) stratified squamous epithelium secretes more mucin than pseudostratified columnar C) the stratified squamous epithelium has no cilia to remove accumulating mucus D) the two events are unrelated E) coughing helps increase airflow into the airway 24. The three types of muscle tissue are A) voluntary, involuntary, and cardiac B) skeletal, striated, and involuntary C) striated, cardiac, and smooth D) striated, unstriated, and rough E) smooth, cardiac and skeletal 25. A tissue section containing successive layers of smooth muscle, connective tissue, and transitional epithelium could be from the wall of the A) heart B) stomach c) urinary bladder D) small intestine E) epidermis

Answer 1

20: Sudoriferous ( Option C )

The sweat gland is an exocrine gland. An exocrine gland is a duct gland that secretes material on a surface such as skin, gastrointestinal tract, respiratory epithelium.

21: Oxygen levels ( Option B)

Cyanosis is a bluish discoloration of the skin, mucous membrane due to the low supply of oxygen to that area.

22: Hyaline cartilage ( Option A)

Hyaline cartilages are the most common type of cartilages. It is mainly found joint surface. It is composed of collagen, chondromucoprotein.

23: The stratified squamous epithelium has no cilia to remove accumulating mucus ( Option C)

Epithelial coating of the respiratory tract function as the first line of defense against foreign particles ( tobacco in this case). Long term exposure to smoking can lead to structural alteration in the respiratory epithelium.

24: Smooth, cardiac and skeletal ( Option E)

Muscles tissue is soft tissue. Muscle tissue allows the movement of muscles. There are three types of muscle tissue:

Smooth muscle cell: Non-striated, responsible for involuntary movement in the internal organs. These are found within blood vessels, urinary bladder, uterus, respiratory tract, etc.

Cardiac muscle cell: Striated muscle, found in the walls of the heart.

Skeletal muscles: Striated, voluntary muscle. Responsible for movement of body parts, facial expression, etc.

25: Urinary bladder ( Option C)

Transitional epithelium is a type of stratified epithelium. They are named so because of their ability to change in structure and shape. They consist of multiple layers of epithelial cells.

26: Blood Physical support and protection ( Option B)

This option is not correct since the main function of blood is to provide oxygen and other essential nutrients to the tissue.

27: Perichondrium ( Option B )

The perichondrium is dense irregular connective tissue. It lines the developing bones.

28: Strong, resilient bone ( Option C)

29: Epithelial tissue is regenerating ( Option C)

Granulation tissue begins to appear in the wound about 3 to 6 days after injury and provides a surface for the migration of epithelial cells. It provides a barrier to infection myofibroblasts necessary for wound contraction, and the fibroblasts responsible for collagen formation.

30: Inflammation ( Option C)