Lab 5 HW to Review

Which muscle cell type has visible striations but is not under voluntary control?

-These muscle cells contract without you consciously thinking about it. -cardiac -cardiac cells, like skeletal cells, have visible striations but are not under voluntary control.

Which of the three muscle cell types has multiple nuclei?

-Think about which muscle cell is larger and would need more nuclei. -skeletal -skeletal muscle cells are elongated and many can be quite long; therefore, they have multiple nuclei.

The proximal tubule of the nephron (kidney tubule) in the kidney is composed of which type of epithelium?

-This would require a tissue that would allow secretion and absorption. -simple cuboidal epithelium -simple cuboidal cells line the kidney tubules (nephrons) so that secretion and absorption can take place.

The epithelium of the esophagus is composed of which type of epithelial tissue?

-You would find this type of epithelium in areas where there is wear and tear. -stratified squamous epithelium -this epithelium protects underlying tissues from the wear and tear of constant swallowing in the esophagus.

Exfoliative cytology involves the removal of epithelial cells for examination. Which of the following ARE clinical applications of exfoliative cytology?

-a Pap test performed to examine cells for cervical cancer. -amniocentesis performed partway through a pregnancy -evaluating lesions in the oral cavity and pharynx

The wall of the alveolus (air sac) in the lung is composed of which type of epithelium?

-simple squamous epithelium -this single layer of squamous cells is ideal for the diffusion of gases in the lungs -thin

Which part of the neuron (a specialized nerve cell) receives signals from other cells and is also the main metabolic region of the neuron?

-this area is also called the cell body -soma -soma or cell body receives inputs (signals) from other cells and sends the information to the axon. But UNLIKE a dendrite, it also is the main metabolic and nutritional center of the cell.

Bone (osseous tissue)

Canaliculi, osteocytes in lacunae, matrix, contains central canal.......

Elastic Cartilage

Chondrocytes in lacunae, elastic fiber in matrix........

Types of supporting connective tissues

Hyaline cartilage Elastic cartilage Fibrocartilage Bone (osseous tissue)

Types of connective tissue proper.

adipose tissue, reticular tissue, dense irregular connective tissue, dense regular connective tissue, elastic tissue, areolar tissue

Which type of loose connective tissue provides padding, cushions shock, reduces heat loss, and stores energy? Where are some places in the body this type of tissue is commonly found? (Figure 4-11)

adipose tissue; deep to the skin at sides, buttocks, and breasts

Which surface attaches to the underlying epithelial cells or deeper tissues?

basal

Fibrocartilage

chondrocytes in lacunae, fibrous matrix......

In "simple columnar epithelium," which word describes cell shape and which word describes the number of cell layers? (Figure 4-6)

columnar; simple

Hyaline cartilage

contain chondrocytes in lacunae, matrix ....

Which structure typically receives information from other neurons?

dendrite

Exfoliative cytology involves the removal of epithelial cells for examination. Which of the following is NOT a clinical application of exfoliative cytology?

examination of cardiac muscle cells after a heart attack

Marfan's syndrome

is an inherited condition caused by the production of an abnormally weak form of fibrillin, a glycoprotein that gives strength and elasticity to connective tissues. The effects of this defect are widespread because most organs contain connective tissues. Tall and abnormally long limbs and fingers

Exfoliative cytology

is the study of cells shed or removed from epithelial surfaces. Cells can be examined for changes that indicate cancer or for genetic screening of a fetus

A marked loss in strength and elasticity of connective tissue characterizes Marfan's syndrome. Which connective tissue component imparts strength and elasticity?

proteinaceous connective tissue fibers

What are the types of tissues?

simple and stratified; squamous, cuboidal, columnar

Which epithelium, shown at the end of the arrow, is responsible for protection, secretion, and absorption?

stratified cuboidal