SCIENCE EXAM

Skull

The skeletal structure of the head that supports the face and protects the brain from injuries, consisting of 22 bones subdivided into 8 cranial bones and 14 facial bones.

Backbone

The central support structure of the body, also known as the spine or vertebral column, which consists of 33 small bones called vertebrae.

Vertebra

The building unit of the vertebrae or backbone.

Sternum

The long, flat bone that forms the front part of the rib cage.

Forelimbs

The arms, which are attached to the backbone with the help of the shoulder girdle.

Hind Limbs

The legs, which are attached to the backbone with the help of the pelvic or hip girdle.

Femur

The single long bone in the upper part of the leg, also known as the thigh bone, which is the longest bone in the body.

Joint

A place where two bones meet.

Ligament

A band of strong tissues that connects the bones and joints.

Hinge Joint

A joint that allows movement of bones in only one direction, either forward or backward.

Ball and Socket Joint

A joint that allows movements in all directions, where one end of the bone is shaped like a ball and the other end is shaped like a cup.

Pivot Joint

A joint that allows the rotatory movement of bones, helping in the side-to-side rotation of the head.

Gliding Joint

A joint that allows bones to glide against each other in any direction, found in the wrist, ankle, and between vertebrae of the backbone.

Cartilage

A strong elastic tissue that protects bones from rubbing against each other at joints; soft to touch and easily bent, found in the ankle, elbow, knee, tip of the nose, and tip of the ears.

Muscles

Soft tissues that cover the bones.

Tendons

Strong tissues that attach muscles to the bones.

Skeletal Muscles

Muscles that connect to bones, also known as voluntary muscles because their movements can be directly controlled, and also known as strait head muscles.

Cardiac Muscles

Involuntary muscles found in the heart.

Smooth Muscles

Involuntary muscles found in the walls of organs and blood vessels within the body whose movements cannot be controlled.

Human Circulatory System

The system that helps in the transport and circulation of various substances to all parts of the body.

Heart

A muscular organ located in the chest cavity slightly towards the left that pumps blood throughout the body.

Atria

The two upper chambers of the heart.

Ventricles

The two lower chambers of the heart.

Blood

A red colored fluid that flows freely throughout the body, transferring oxygen and nutrients to the cells.

RBCs

Red colored cells in the blood that carry oxygen from the lungs to other parts of the body and help in removing carbon dioxide.

WBCs

Colorless cells in the blood that help to fight infections and protect the body against diseases.

Platelets

Cells that help in the clotting of blood in case of a cut or wound.

Blood Vessels

A fine network of tubes—including arteries, veins, and capillaries—that carry blood throughout the body.

Arteries

Blood vessels that carry oxygen-rich blood from the heart to other parts of the body.

Capillaries

Small networks of blood vessels divided from arteries that carry blood to every cell of the body.

Veins

Blood vessels that carry carbon dioxide rich blood from different body parts to the heart.

Circulation

The movement of blood through the heart and the body in a flowing manner.

What is bone marrow 🦴?

A bone marrow is a soft substance found in the bone

What are the 3 parts of the 🧠

The 3 parts of the 🧠 is cerebellum,cerebrum and brainstem.

What are the parts of the eye?

The part of the eye is cornea, Iris,Pupil and retina and lens.

What is the outer visible part of the ear called

The outer visible part of the year is called pinna

What are the types of nerves

The types of nerves are motor nerves sensory nerves and mix nerves

The actions that are controlled and managed by the spinal cord and are not controlled by the brain are called what

The actions that are controlled and managed by the spinal cord and are not control by the brain are called reflex action.

What is the nervous system

The Nervous System controls and coordinates the activities of all the other organ systems of the body The Nervous System controls the functioning of our organs

Define the brain

The brain is a complex organ that controls all body Le functions it is known as the control centre of our body it is located in the head and is protected by a bony structure called the skull or cranium

What is cerebrum

The cerebrum is the largest part of the brain it is responsible for a thinking and logical

What is the cerebellum

The cerebeam is located at the back of the brain it coordinates voluntary muscle movements and muscle coordination it also helps maintain body posture and balance

What is the brain stem

The brain stem is the middle part of the brain that lies Beneath The cerebellum. It connects the brain to the spinal cord and is also known as medulla

Define spinal cord

The spinal cord is a thick bundle of nerves located in the back that extends from the brain stem to the lower and of the spine it is a rounded and protected by the burning vertebral column.

What are the four main taste buds of our 👅

The four main taste buds are sweet for salty and bitter