TOPIC: Muscles-Tissue OBJ: 1-3

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REMINDERS

HW: Naming Muscle Criteria Worksheet DUE: Thursday

DO NOW: Pick up Muscle Comparison worksheet and do part 1

-Job shadow/volunteer

[2nd deadline: 3/13/2020]

-Test Corrections

Due Monday Feb. 10th

-Discuss deadline #2 expectations

-9.1 Notes

-10.2 Naming Muscles Criteria

-Test corrections

Add on to each question every night as REVIEW

1- -COMPARE the three basic types of muscle tissue.

2- -LIST four characteristics of muscle tissue.

3- -LIST four important functions of muscle tissue.

Anatomy Daily Work Tracker

1 2/4 Unit 7-Muscle Objectives TBD

2

3

18.3 Blood Flow

Sheep Packet: highlight

4

5

1/10

1/13

1/13

1/14

Heart labeling: Pg 426 & 4296 1/15 1/17

Have neighbor check off

& initial in PEN

BLUE highlight → you should have 2, 1, or 0 checked

2/4 9.1 Muscle Tissue Worksheet 2/4

2/4 2/610.2 Naming Muscle Criteria

9.1 Overview of Muscle Tissue

• Nearly half of body’s mass

• Can transform chemical energy (ATP) into mechanical energy

• To investigate muscle, we look at:

– Types of muscle tissue

– Characteristics of muscle tissue

– Muscle functions

9.1 Muscle Tissue

• Skeletal muscle

• attaches to bone, skin or fascia

• striated with light & dark bands visible with scope

• multinucleated

• voluntary control of contraction & relaxation

9.1 Muscle Tissue

• Cardiac muscle

• striated in appearance

• Intercalated disks

• involuntary control

• autorhythmic because of built in pacemaker

9.1 Muscle Tissue

• Smooth muscle

• attached to hair follicles in skin

• in walls of hollow organs -- blood vessels & GI

• Non-striated in appearance

• involuntary

Table 9.3-1 Comparison of Skeletal, Cardiac, and Smooth Muscle

© 2016 Pearson Education, Inc.

9.1 Characteristics of Muscle Tissue

• All muscles share four main characteristics:

– Excitability (responsiveness): ability to receive and respond to

stimuli

– Contractility: ability to shorten forcibly when stimulated

– Extensibility: ability to be stretched

– Elasticity: ability to recoil to resting length

9.1 Muscle Functions

• Four important functions

1. Produce movement: responsible for all locomotion and

manipulation

• Example: walking, digesting, pumping blood, regulating organ volume via

spinchters

2. Maintain posture and body position

3. Stabilize joints

4. Generate heat as they contract

• Additional functions

• Protect organs, form valves, control pupil size, cause “goosebumps”

Muscle Tissue

In a different COLOR

Do part 1 again-DO NOT GUESS

[2 minutes]

Do Part 2

Naming Muscle Criteria

Reminders…

1-Hold the bag at waist level.

2-SQUEEZE those kitties!

3-Place bag in assigned sink.

4-Head in first today