1.4 Tissues

1.4 Tissues

Epithelial Tissue​

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​Characteristics

Covers body surfaces and lining cavities

• ​Apical-basal polarity

• Specialized Contacts

• ​Supported by connective tissue

• ​Avascular but Innervated

• ​Regeneration

​Classification of Epithelia

​Simple epithelia - single cell layer

​Stratified epithelia - 2+ layers

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​

​Squamous - flattened, scalelike

​Cuboidal - boxlike, as tall as wide

​Columnar - tall, column shaped

Multiple Choice

a single layer of cube-like cells is most likely

• simple squamous

• stratified columnar

• stratified cuboidal

• simple cuboidal

Multiple Choice

Multiple layers of cells, with a top layer of flattened cells is most likely...

• simple squamous

• stratified squamous

• simple columnar

• stratified columnar

Multiple Choice

The superficial portion of an epithelial cell is the

• Basal Body

• Apical Surface 

Multiple Choice

This form of epithelial tissue makes up the air sacs of the lungs

• Simple squamous

• Simple cuboidal

• Simple columnar

Multiple Choice

Which form of epithelial tissue propels mucus up the bronchi?

• Simple squamous

• Simple cuboidal

• Simple columnar

Multiple Choice

The epidermis is made of

• Pseudostratified columnar epithelium

• Transitional epithelium

• Stratified squamous epithelium

Multiple Choice

This form of epithelial tissue can expand to make space for liquid.

• Pseudostratified columnar epithelium

• Transitional epithelium

• Stratified squamous epithelium

Connective Tissue​

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​Characteristics

• ​Common Origin: Mesenchyme

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• Degree of Vascularity

​

• ​Extracellular Matrix - large portion of tissue mass

Structural Elements

Ground Substance

​

​Connective Tissue Fibers

• ​Collagen - Large, Tough

• ​Elastic - Long, Stretch

• ​Reticular - Short, Stretch

​

Structural Elements

Connective Tissue Cells

• ​Fibroblasts: Connective Tissue Proper

• ​Chondroblasts: Cartilage

• ​Osteoblasts: Bone

• ​Hematopoietic Stem Cells: produce blood cells

​

​Once secreted into matrix,

blast is replaced with "cyte"

Structural Elements

Other Cell Types

• ​Fat cells: store nutrients

• ​White blood cells: tissue reponse

• ​Mast cells: detect foreign organisms

• ​Macrophages: perform phagocytosis

Multiple Choice

The cells of connective tissue proper are

• Fibroblasts

• Chondroblasts

• Osteoblasts

Multiple Choice

The embryonic tissue that forms all connective tissues is _.

• Fibroblasts

• Mesenchyme

• Chondroblasts

• Collagen

Multiple Choice

These connective tissue fibers are large and increase tissue strength

• Elastic

• Collagen

• Reticular

Types of Connective Tissue

Multiple Choice

This tissue cushions and supports organs and absorbs fluids in an inflammatory response

• Areolar

• Hyaline Cartilage

• Adipose

• Dense Regular

Multiple Choice

This tissue attaches muscle to bone, or bone to bone

• Loose Areolar

• Hyaline Cartilage

• Adipose

• Dense Regular/Fibrous

Multiple Choice

The cartilage between vertebrae

• Hyaline Cartilage

• Elastic Cartilage

• Fibrocartilage

Multiple Choice

The connective tissue found in liquid form

• Bone

• Hyaline Cartilage

• Blood

• Adipose

Muscle Tissue​

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​Muscle Tissues

​Highly cellular, well-vascularized tissues

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​Responsible for most types of body movement

Nervous Tissue​

​

​Neurons

​highly specialized nerve cells that generate and conduct nerve impulses.

• ​Respond to Stimuli

• ​Transmit electrical impulses over substantial distances within the body

Multiple Select

Select the muscle tissue type(s) that are striated

• Skeletal

• Cardiac

• Smooth

Multiple Select

Select the muscle tissue type(s) that are involuntary

• Skeletal

• Cardiac

• Smooth

Multiple Select

Select the muscle tissue type(s) that are branched

• Skeletal

• Cardiac

• Smooth

Multiple Choice

What part of the neuron transmits impulses to neighboring neurons?

• Axon

• Cell Body