P3. »Research task: In pairs Locate all major muscles on your partner and be ready to know what each muscle is also known as & does. biceps triceps deltoids.

Location of major muscles

P3

Muscular system

»Research task: In pairs Locate all major muscles on

your partner and be ready to know what each muscle is also known as & does.

biceps triceps deltoids pectoralsrectus abdominus quadriceps. These must be split into:o rectus femoriso vastus lateraliso vastus medialiso vastus intermedius)hamstrings. These must split into:· semimembranosus· semitendinosus· biceps femoris

gastrocnemiussoleustibialis anteriorerector spinaeteres majortrapeziuslatissimus dorsiobliquesgluteus maximus

Muscular system

» Lower body:» Anterior view

Quadriceps:• Rectus

Femoris• vastus

Intermedius• Vastus

Lateralis• Vastus

Medialis

Tibialis anterior

» Posterior View (back)» Lower body

Gluteus Maximus

Hamstrings:• Semimembranosus• Semitendinosus• Biceps Femoris

Gastrocnemius

Soleus

Muscular System

Muscular System

» Upper body anterior view

BicepsTricepsDeltoidsPectoralis Major

Rectus Abdominus

Obliques

Muscular System

» Upper body posterior view

Teres Major

Trapezius- Upper back

Latisimus Dorsi- Lower Back

Erector spinae

Copy and complete the tables…

Muscles

» There are three types of muscle;» Cardiac- in-voluntary the muscle that

encompass the heart » Smooth- in-voluntary » Skeletal- voluntary Provides Human

Movement, attached to the skeleton by tendons

Divide the class into 3 (Cardiac/Smooth and Skeletal muscle):

- Find a couple of images of the muscle- Say what this type of muscle does- Give a few examples

Be prepared to feedback your findings to the class…

Cardiac Muscle

The heart has its own muscle tissue called

Cardiac/Myocardium muscle.

It is an Involuntary muscle: as it has its own nerve supply. It works by sending nerve impulses through the cells and fibres within the muscle.

Function: the function of the myocardium is to pump blood around the body.

It beats 60-80 times a minute

Smooth Muscle

Also an involuntary muscle as they are out of out

CONSCIOUS control.

Found in the digestive system (large and small intestine), Circulatory system (artery and vein walls) and Urinary system.

Smooth muscle contracts consecutively

(peristaltic action), producing a wavelike effect.

E.G. when food is passed through the digestive system it is slowly squeezed through the intestines.

Skeletal Muscle

It is under voluntary control as we decide when to contract the muscles and produce movement.

Co-ordinated contractions of the skeletal muscle allow us to move smoothly and produce sports skills.

Over 700 skeletal muscles make up 40% of our body weight (slightly less for females).

Skeletal muscle is responsible for the

following functions:- Produce movement- Maintaining body posture- Generate heat for warmth

What else?

Muscle that is attached to the skeleton across joints…

1) For P3, identify the location of the named muscles (across)

2) Including the three types of muscle.

Major muscles: • Biceps• Triceps • Deltoids • Pectoralis major• Rectus abdominis • Thigh Muscles: Rectus femoris, vastus

lateralis, vastus medialis, vastus intermedius, semimembranosus, semitendinosus, biceps femoris

• Gastrocnemius• Soleus • Tibialis anterior • Erector spinae• Teres major • Trapezius• Latissimus dorsi• Obliques• Gluteus maximus

Types of muscle:Cardiac, Skeletal, Smooth