Podcast
Questions and Answers
What happens when the biceps muscle contracts?
What happens when the biceps muscle contracts?
Antagonistic muscles can push against each other.
Antagonistic muscles can push against each other.
False
What role do tendons play in muscle contraction?
What role do tendons play in muscle contraction?
Tendons transmit the pulling force from muscles to bones.
The pair of muscles that work together, pulling in opposite directions, are called __________ muscles.
The pair of muscles that work together, pulling in opposite directions, are called __________ muscles.
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Match the following muscles with their actions:
Match the following muscles with their actions:
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List three functions of the skeleton.
List three functions of the skeleton.
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Which type of joint allows for the most movement?
Which type of joint allows for the most movement?
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The elbow joint is a ball-and-socket joint.
The elbow joint is a ball-and-socket joint.
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The biceps muscle is attached to the ___ and ___ bones.
The biceps muscle is attached to the ___ and ___ bones.
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Match the bones that protect the following organs:
Match the bones that protect the following organs:
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How many ribs does a person have?
How many ribs does a person have?
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What is the primary role of tendons?
What is the primary role of tendons?
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Name the bones that form the hinge joint at your elbow.
Name the bones that form the hinge joint at your elbow.
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Study Notes
The Human Skeleton
- The skeleton supports the body and helps it move.
- It protects internal organs.
- The diagram shows the main bones.
Functions of the Skeleton
- Supports the body
- Helps the body move
- Protects internal organs
Bones in the Human Body
- Cranium (protects the brain)
- Vertebral column
- Clavicle
- Scapula
- Sternum
- Ribs
- Humerus
- Ulna
- Radius
- Pelvic girdle
- Carpals
- Femur
- Tibia
- Fibula
Ribs
- A person has 12 pairs of ribs
Bone Protection
- Bones protect internal organs (brain, heart and lungs)
Animal Skeletons
- X-ray of a mink suggests differences in bone structure compared to humans.
Joints
- Joints are where two bones meet.
- Two main types of Joints: Fixed and Moveable joints
- Fixed joints are found in the cranium. The bones are firmly joined to protect the brain.
- The jawbone is an example of a moveable joint.
- Moveable joints allow the bones to move.
- Examples include ball-and-socket joints (shoulder) and hinge joints (elbow).
Hinge Joints
- Move in one direction, like a door on a hinge.
- Example: elbow joint.
Ball-and-Socket Joints
- Move in almost all directions.
- Example: shoulder joint.
Muscles
- Muscles help with movement.
- Tendons connect muscles to bones.
- Tendons are strong and don't stretch.
- Muscles can contract (get shorter).
- Muscles produce a pulling force.
Antagonistic Muscles
- Two muscles working together (biceps and triceps)
- One muscle contracts, the other relaxes.
- This allows for both bending and straightening of the arm
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Description
This quiz explores the human skeleton's structure and functions. It covers the major bones, their protective roles, and the types of joints. Additionally, it compares human and animal skeletons, providing insights into bone structure variations.
