EVS Grade 5 - Chap -5 - Animal -Our Body

These 100 question-and-answer flashcards cover the skeletal system, nervous system, types of joints, reflex actions, health and safety practices, and key medical specialities, providing a comprehensive review for the upcoming exam.

What is the framework of bones in our body called?

The skeletal system

How many bones are there in an adult human body?

206 bones

Which is the longest bone in the human body?

Femur (thigh bone)

Which is the smallest bone in the human body?

Stapes (in the ear)

Name the three main parts of the skeletal system.

Skull, rib cage, vertebral column

What does the skeletal system give to our body?

Shape and support

What protects the brain?

The skull

What protects the heart and lungs?

The rib cage

How many pairs of ribs do humans have?

12 pairs

What is the hard bone in the centre of the rib cage called?

Sternum

How many small bones make up the vertebral column?

33 bones

What does the vertebral column protect?

The spinal cord

Is the vertebral column the same as the spinal cord?

No, they are different structures

What passes through the vertebral column?

The spinal cord

What is the function of the spinal cord?

It carries messages between the brain and the body

What connects muscles to bones?

Tendons

What connects bones to bones?

Ligaments

Which two body parts work together for movement?

Bones and muscles

Which joint allows movement in one direction only?

Hinge joint

Give one example of a hinge joint.

Elbow or knee

Which joint allows movement in all directions?

Ball-and-socket joint

Give one example of a ball-and-socket joint.

Shoulder or hip

What type of joints do the skull bones have?

Immovable joints

Name a movable joint found in the neck.

Pivot joint

Animals with a backbone are called what?

Vertebrates

Animals without a backbone are called what?

Invertebrates

Give two examples of vertebrates.

Fish, crocodile

Give two examples of invertebrates.

Jellyfish, starfish

What is an action?

A response to a stimulus

What is a reflex action?

A quick, automatic response to a stimulus

Which part of the nervous system controls reflex actions?

The spinal cord

Give one example of reflex action.

Pulling the hand away from a hot object

In reflex action, where do messages go first?

The spinal cord

Why is reflex action important?

It protects us from harm

Which nerves carry messages from body to brain?

Sensory nerves

Which nerves carry messages from brain to body?

Motor nerves

Nerves that work as both sensory and motor are called what?

Mixed nerves

Why should we wear a helmet when riding a two-wheeler?

To protect the head and brain

Name one exercise good for skeletal health.

Walking

Name one nutrient important for bones.

Calcium

What is orthopaedics?

The branch of medicine related to bones

Who treats bone problems?

An orthopaedist

What is neurology?

The branch of medicine related to the nervous system

Who treats brain and nerve problems?

A neurologist

True or False: The femur is shorter than the stapes.

False

True or False: The rib cage protects the brain.

False

True or False: Vertebrates have a backbone.

True

True or False: Ligaments connect bones to muscles.

False

True or False: Reflex actions are slow.

False

True or False: Mixed nerves have only one function.

False

Fill in the blank: The skeletal system has ___ bones in an adult human.

206

Fill in the blank: The femur is the ____ bone.

Longest

Fill in the blank: The stapes is the ____ bone.

Smallest

Fill in the blank: The skull protects the ____.

Brain

Fill in the blank: The rib cage has ___ pairs of ribs.

12

Fill in the blank: The vertebral column has ___ bones.

33