Muscular System

Muscular System

What will be discussed

• Main Function of the muscular system

• 5 major properties of the muscular system

• 5 types of muscle movements within the muscular system

• 3 types of muscles within the muscular system

• Different planes

• Other body position

Did You KNOW...

The muscular system is made up of over 600 muscles

Main Function

Provide movement for the body

The muscles receive their ability to move the body through the nervous system

5 Major Properties of Muscles are...

• Excitable or Irritable

• Contractible

• Extensible

• Elasticity

• Adaptability

Adaptability

The muscular system is adaptable in that it can be changed in response to how it is used

Elasticity

A muscle is able to return to its original resting shape and length after being extended or contracted

Extensible

a muscle can be stretched without damage by the application of force

Contractible

after receiving stimulation, they are capable of contracting or shortening

Excitable or Irritable

They are capable of receiving stimulation and responding to stimulation from the nerves

Hypertrophy and Atrophy

• Hypertrophy- Enlarging the muscle

• Atrophy- Wasting away of muscle

Hypertrophy

https://www.youtube.com/watch?v=RKkfkd9zNY8

Atrophy

https://www.youtube.com/watch?v=41OAbvYdAvw

5 types of movements

• Adduction

• Abduction

• Flexion

• Extension

• Rotation

Rotation

Involves moving a body part around an axis

Flexion

bending a joint to decrease the angle between two bones or two body parts.

Adduction

moving a body part toward the mid-line of the body

Abduction

moving a body part away from the body

Extension

Straightening and extending of the joint to increase the angle between two bones or body parts

Multiple Choice

Which type of movements is being done in the picture

• Rotation & Abduction

• Abduction & Adduction

• Extension & Flexion

• Flexion & Rotation

Multiple Choice

Which movement is being done in the picture

• Adduction

• Extension

• Flexion

Multiple Choice

Which movement is being done in the picture

• Flexion

• Extension

• Rotation

Multiple Choice

What movement is being done in the picture

• Extension

• Abduction

• Adduction

• Flexion

Multiple Choice

Which movement is being done in the picture

• Adductor

• Abductor

• Flexion

• Extension

Multiple Choice

Which movements are being done in this picture

• Flexion & Rotation

• Extension

• Rotation

• Rotation & Extension

Multiple Choice

Which movement is being done in the picture

• Adduction

• Abduction

• Flexion

Types of Muscles

• Cardiac

• Smooth

• Skeletal

• Muscles are either voluntary or involuntary

Cardiac Muscle

Involuntary muscle

These muscles form the walls of the heart and contracts to circulate the blood

Smooth Muscle

Involuntary Muscle

Found in organs and organs system such as the Respiratory and Digestive system

Skeletal Muscle

Voluntary Muscle

Attach to the skeleton and provide the skeleton with the ability to move

Multiple Select

Which muscle is voluntary?

• Cardiac Muscle

• Skeletal Muscle

• Smooth Muscle

Multiple Select

Which two muscles are involuntary?

• Cardiac Muscle

• Skeletal Muscle

• Smooth Muscle

Planes of the Body

• Coronal

• Sagittal

• Transverse

Defining Planes

Coronal Plane: Divides body into anterior and posterior portions

Sagittal Plane: Divides body into left and right portions

Transverse Plane: Divides body into superior and inferior portions

Multiple Choice

Which plane is this?

• Transverse Plan

• Coronal Plane

• Sagittal Plane

Multiple Choice

Which plane is this?

• Superior Plane

• Coronal Plane

• Sagittal Plane

Multiple Choice

Which plane is this?

• Anterior Plane

• Inferior Plane

• Sagittal Plane

• Coronal Plane

Other Terms of Position for the Body...

• Medial & Lateral

• Proximal & Distal

• Supination & Pronation

• Superficial & Deep

Superficial and Deep