Lab 2: Connective Tissue, Muscle, Nervous Tissue

Question 1

Loose Connective Tissue Categories

Answer 1

Areolar

Adipose

Reticular

Question 2

Areolar Connective Tissue

Structure

Functions

Locations

Answer 2

Matrix contains all 3 fiber types.
Cells: fibroblasts, macrophages, mast cells.

Cushions organs; involved in inflammation and phagocytosis of bacteria.

Under epithelium, surrounding organs.

Question 3

Adipose Connective Tissue

Structure

Functions

Locations

Answer 3

Matrix: scant.
Cells: adipocytes filled with triglycerides.

Stores triglycerides for future energy needs; insulates; supports and protects organs.

Under skin; around kidneys and eyes; in the abdomen and breasts.

Question 4

Reticular Connective Tissue

Structure

Functions

Locations

Answer 4

Matrix contains reticular fibers.
Cells: lymphocytes, macrophages, mast cells.

Reticular fibers provide a site for cells to sit.

Spleen, lymph nodes, bone marrow.

Question 5

Dense Connective Tissue Categories

Answer 5

Dense Regular

Dense Irregular

Question 6

Dense Regular Connective Tissue

Structure

Functions

Locations

Answer 6

Matrix contains many collagen fibers-arranged parallel to each other; few elastic fibers.
Cells: fibroblasts.

Attaches bone to bone and muscle to bone; provides strength.

Tendons and Ligaments.

Question 7

Dense Irregular Connective Tissue

Structure

Functions

Locations

Answer 7

Matrix contains many collagen fibers-no pattern; few elastic fibers.
Cells: fibroblasts.

Structural strength when force is multidirectional.

Dermis; joint capsules.

Question 8

Cartilage Categories

Answer 8

Hyaline Cartilage

Fibrocartilage

Question 9

Hyaline Cartilage

Structure

Function

Location

Answer 9

Matrix contains collagen fibers.
Cells: chondrocytes in lacunae.

Supports and cushions; resists compression.

Embryonic skeleton, costal cartilage, nose, larynx, trachea.

Question 10

Fibrocartilage

Structure

Function

Location

Answer 10

Matrix contains thick collagen fibers.
Cells: chondrocytes in lacunae.

Strength; absorbs compressive shock.

Intervertebral discs; pubic symphysis; meniscus.

Question 11

Other Connective Tissue Categories

Answer 11

Bone

Blood

Question 12

Bone Connective Tissue

Structure

Function

Location

Answer 12

Matrix is calcified; contains collagen fibers; vascularized.
Cells: osteocytes in lacunae.

Supports, protects,
stores minerals and produces blood cells.

Skeleton

Question 13

Blood Connective Tissue

Structure

Function

Location

Answer 13

Fluid matrix (plasma).
Cells: RBC, WBC

Transports O2, CO2, nutrients, wastes, etc.

Within blood vessels.

Question 14

Muscle Categories

Answer 14

Skeletal

Cardiac

Smooth

Question 15

Skeletal Muscle

Structure

Function

Location

Answer 15

Cells are long, cylinder-like, multi-nucleated and striated.

Voluntary movement.

Attached to bones.

Question 16

Cardiac Muscle

Structure

Function

Location

Answer 16

Cells: branched, one nucleus, striated, intercalated discs.

Pumps blood.

Heart walls.

Question 17

Smooth Muscle

Structure

Function

Location

Answer 17

Cells: spindle-shaped, one nucleus, no striations, arranged to form sheets.

Moves substances (food, wastes, urine).

Walls of hollow organs.

Question 18

Nervous Tissue Categories

Answer 18

Nervous Tissue

Question 19

Nervous Tissue

Structure

Function

Location

Answer 19

Cells: neurons and glial cells.

Neurons transmit nerve impulses; glial cells help neurons.

Brain, spinal cord, nerves.