Chapter 19

_____ tissues are sheetlike with one free surface. a. Epithelial b. Connective c. Nervous d. Muscle

_____ connect(s) epithelium to underlying connective tissue. a. Gap junctions b. Basement membrane c. Keratinocytes d. Plasma membrane

Most animals have glands derived from _____ tissue. a. epithelial b. connective c. muscle d. nervous

Only _____ cells have cilia or microvilli at their surface. a. epithelial b. connective c. muscle d. nervous

The most abundant protein in the human body is _____ , made by fibroblasts. a. collagen b. keratin c. melanin d. hemoglobin

_____ consists mainly of plasma. a. Loose connective tissue b. Blood c. Cartilage d. Bone

Your body converts excess carbohydrates and proteins to fats that accumulate in _____. a. fibroblasts b. neurons c. adipose tissue cells d. melanocytes

_____ tissues are the body's most abundant and widely distributed tissue. a. Epithelial b. Connective c. Nervous d. Muscle

Cells of _____ can shorten (contract). a. epithelial tissue b. connective tissue c. muscle tissue d. nervous tissue

_____ muscle tissue has a striped appearance and is under voluntary control. a. Skeletal b. Smooth c. Cardiac d. a and \(c\)

Thin cytoplasmic projections from cells called _____ carry signals between your spinal cord and your toes. a. neurons b. neuroglial cells c. fibroblasts d. keratinocytes

The functions of skin include _____. a. defense against pathogens c. production of vitamin \(\mathbf{D}\) b. helping to cool the body d. all of the above

When the level of sugar in your blood falls too low, your body senses this decline and converts glycogen to sugar, putting more sugar into your blood. This is an example of _____. a. differentiation b. negative feedback c. homeostasis d. b and \(c\)

Match the terms with the most suitable description. a. outermost skin layer b. secretes through duct c. in heart only d. support in ears and nose e. contracts, not striated f. mainly loose connective tissue g. plasma, platelets, and cells h. ductless hormone secretor 1\. increases with sun exposure j. secreted by fibroblasts; most abundant protein in a human body exocrine gland _____ endocrine gland _____ epidermis _____ dermis ____ smooth muscle _____ cardiac muscle _____ blood _____ melanin _____ collagen _____ cartilage _____