4.5 Muscles

• Biologie
• Middelbare school
• havo
• Leerjaar 1

How do we call joints that allow for a lot of movement?

1. Synovial joints
2. Fibrous joints
3. Cartilaginous joints
4. Sutures

Hey 1VHT,  Please join the LessonUp & get out your notebook & pencil case! 

How do we call the joints that keep the bones of the skull together?

1. Synovial joints
2. Fibrous joints
3. Cartilaginous joints
4. Sutures

What type of joints are the intervertebral discs?

1. Synovial joints
2. Fibrous joints
3. Cartilaginous joints
4. Sutures

What type of joints are the pivot, hinge and ball-and-socket joint?

1. Synovial joints
2. Fibrous joints
3. Cartilaginous joints
4. Sutures

PIVOT 

HINGE

BALL-AND-SOCKET

Next to bones and joints, what else do you need for movement?

What do you remember OR already know about muscles & the muscular system?

GET OUT YOUR NOTEBOOK

We are going to take a note. 

The title of the note is : 4.5 Muscles

ANTAGONISTIC MUSCLE PAIR

muscles that work together 

in pairs. Both muscles work

in opposite direction. 

For example:

Bicep & tricep work

together to make sure

you can bend & stretch 

your arm.

Copy the table (in your notebook / take a screenshot) & answer the questions. Use your book! 

	skeletal (also called voluntary muscle)	cardiac	smooth (also called involuntary muscle)
Where can we find this type of muscle?	Attached to your skeleton by tendons
Can we control this type of muscle by free will?		No
Are they very strong?		Yes
Can they work for long periods at a time?			Yes
What do the cells of this type of muscle look like? (make a drawing!)

Let's check your answers! 

	skeletal (also called voluntary muscle)	cardiac	smooth (also called involuntary muscle)
Where can we find this type of muscle?	Attached to your skeleton by tendons	In your heart	In your internal organs (stomach, urine bladder)
Can we control this type of muscle by free will?	Yes	No	No
Are they very strong?	Yes	Yes	No
Can they work for long periods at a time?	No	Yes	Yes
What do the cells of this type of muscle look like? (make a drawing!)

Fast-twitch & slow-twitch

Skeletal muscles are made up of muscle fibers (=spiervezels). 2 types: 

• Fast-twitch = They tire very quickly, but give great strength for fast, short movements (sprinters)
• Slow-twitch = can keep contracting for longer periods of time without getting tired (marathon-runners)

Look at the X-ray of a synovial joint. What is the name of this type of joint?

1. Pivot joint
2. Hinge joint
3. Ball-and-socket joint
4. Knee joint

GET YOUR MINDMAP. 

Today we will learn about MUSCLES!