Ch. 10 Laboratory Exercise: Muscle Tissue Worksheet
EXERCISE 6 — TISSUES
Ch. 10 Laboratory Exercise: Muscle Tissue Worksheet
Muscle Tissue: Drawing Exercise
Directions:
View the different muscle tissue types located in Real Anatomy: Histology:
- Striated skeletal muscle, 100x
- Striated cardiac muscle, 100x
- Smooth muscle, 100x
Read the following Muscle Tissue Overview and Figure 6.23 of Exercise 6 of Laboratory Manual for Anatomy and Physiology, for an overview of muscle tissue.
Draw each tissue in the space provided and label the major structures. Use the figures provided to help you locate the major structures in each tissue.
Muscle Tissue Overview
Muscle tissue is very cellular, with most of the tissue consisting of muscle cells (refer to the diagram following this overview). All muscle tissues are highly vascularized and are innervated. Muscle cells are elongated cells called fibers that shorten (contract) when stimulated, causing movement. There are three types of muscle tissue—skeletal, cardiac, and smooth—with each type having a distinct appearance. Skeletal muscle cells are large, multinucleated, cylindrical cells. Cardiac muscle cells are smaller, branching cells with one or two centrally located nuclei per cell. Intercalated discs are dark bands where cardiac muscle cells connect end to end. Skeletal and cardiac muscle cells exhibit striations (light and dark bands). Smooth muscle cells are small, spindle-shaped (tapered at both ends) cells that are uninucleated and nonstriated.
EXERCISE 6 — TISSUES
Ch. 10 Laboratory Exercise: Muscle Tissue Worksheet
Muscle Tissue: Drawing Exercise
Sectional view of skeletal muscle fibers. 400×, H&E, human
- nucleus
- striation (stry-AY-tion)
- width of individual muscle fiber
Draw skeletal muscle tissue in the space provided and label the major structures:
| 1 | |
| 2 | |
| 3 |
EXERCISE 6 — TISSUES
Ch. 10 Laboratory Exercise: Muscle Tissue Worksheet
Muscle Tissue: Drawing Exercise
Longitudinal view of cardiac muscle fibers. 400×, iron H&E
- branches of cardiac muscle fiber
- intercalated discs
- nucleus
- width of cardiac muscle fiber
Draw cardiac muscle tissue in the space provided and label the major structures:
| 1 | 3 | ||
| 2 | 4 |
EXERCISE 6 — TISSUES
Ch. 10 Laboratory Exercise: Muscle Tissue Worksheet
Muscle Tissue: Drawing Exercise
Sectional view of smooth muscle in wall of the ureter. 60×, (a) Survey photomicrograph
Draw smooth muscle tissue in the space provided. You don’t need to label the major structures.
EXERCISE 6 — TISSUES
Ch. 10 Laboratory Exercise: Muscle Tissue Worksheet
Muscle Tissue: Drawing Exercise
Sectional view of smooth muscle in wall of the ureter.
400×, (b) Smooth muscle fibers in cross-section and longitudinal section
- nucleus of smooth muscle fiber in cross-section
- nucleus of smooth muscle fiber in longitudinal section
Draw smooth muscle tissue in the space provided and label the major structures:
| 1 | |
| 2 |
Please answer each question with 30 words
1, what features distinguish the three types of muscular tissue?
- List the general functions of muscular tissue
- Describe the four properties of muscular tissue
