PreAssignment #6 The Tissue Level of Organization & The Integument Name: _______________________________ Section #: _______ 1) Please provide a generalized function for the four major types of tissues:

Tissue Type Generalized Functions Epithelial

Connective

Muscular

Nervous

2) For each of the following terms, first tell me which tissue type they are found in (epithelial, connective, muscular, or nervous) and then write a good definition for each:

Located In? Definitions of the Term? Intercalated discs are Lacunae are Pseudostratified means Leukocytes are Cilia are Collagen is Goblet cells are Glial cells are Basement membranes are Axons are Canaliculi are Striations are

3) Tell me what one specific tissue is characterized by: a. Striations, intercalated discs, and involuntary control? b. Many layers of cells that flatten and die on the outer edge of the tissue? c. A liquid matrix that transports gasses, nutrients, and cells for defense?

d. Elongated cells that create and move electrical signals to control the body? e. Dense masses of collagen and cells that secrete matrix from within lacunae? f. A single layer of rounded cells that secrete products into ducts? g. A calcified and vascularized matrix that forms rings around blood vessels? h. A loose mass of fibers and fluids that binds down epithelia and wraps around nerves? 4) For each of these connective tissues, tell me: their general function, 2-3 specific locations, their predominate protein fiber (reticular, collagen, or elastin), and any special features (like lacunae, canaliculi, lamellae.

Tissue General Function 2-3 Locations Protein Fiber Special Features Hyaline Cartilage

Elastic Cartilage

Fibrocartilage

Osseous

5) For the following types of muscle, please tell me their general function, 2-3 specific locations, if they are under voluntary or involuntary control, and any special features they may contain (like striations, intercalated discs, branching fibers, multinucleated cells, spindle-shaped cells, etc.).

Muscle Type General Function 2-3 Locations Vol./Involuntary Special Features Skeletal

a. b. c.

Cardiac

Only found in

Smooth

a. b. c.

6) After reading about cutaneous, mucus, serous and synovial membranes, tell me which one type: a. keeps bones from rubbing on each other within our joints? b. contains goblet cells to create secretions to trap debris? c. contains both visceral and parietal layers? d. creates an external barrier to temperature, chemicals, bacteria, and radiation? e. lines the digestive, respiratory, urinary, and reproductive tracts? f. secretes fluids to protect and hold heat for internal organs? g. contains cells that secrete both keratin to waterproof the body and melanin for UV protection? h. is a degraded layer of cells with no basement membrane that constantly leaks fluids?

7) Describe the 9 main functions of the Integumentary System: a. b. c. d. e. f. g. h. i. 8) Describe why each of the following Integumentary structures is needed by humans: a. basal cells b. melanocytes c. papillary layer d. thick skin 9) Describe why each of the following Integumentary structures is needed by humans: a. keratin b. Vitamin D3 c. cleavage lines d. desmosomes

10) Compare and contrast the main forms of glands found in our Integument (merocrine sudoriferous, apocrine sudoriferous, sebaceous, and ceruminous) based on the following characteristics: where they are located in the body, what products are contained within their secretions, their specific function (why we have them).

Gland Type Specific Location? Contents of their secretions? Their Function? Merocrine sudoriferous

Apocrine sudoriferous

Sebaceous

Ceruminous