Angular motion either increases or decreases the between two bones. these movements may occur at many of the joints. they include the following specific types: (decreasing or increasing the angle between bones), (extension past anatomical position), (bending of the spine to the side in a coronal plane) , (moving a bone into or away from midline), and (the distal end of a limb moves in a circle).

1. ANGLE

2. SYNOVIAL

3. FLEXION and EXTENSION

4. HYPEREXTENSION

5. LATERAL FLEXION

6. ADDUCTION and ABDUCTION

7. CIRCUMDUCTION

Explanation:

° Anatomically, ANGULAR MOTION is generated as result of changes in angles between bones of a joint.

° For bones that are being attached together at joints to move and glide upon each other freely without friction, there needs to be a lubricant between them . This lubricant is called SYNOVIAL FLUID and the space between them is called SYNOVIAL CAVITY.

Hence, Movement of bones at angles occurs the SYNOVIAL JOINTS.

° FLEXION occurs when the angle of the bone decrease e.g upward movement of the forearm at the elbow region.. The opposite is true for EXTENSION . As the name implies, it's simply occurs when the angle of the bone increases.

° HYPEREXTENSION , "HYPER" means an increased state of activity. Anatomically, HYPEREXTENSION is the extension past anatomical position.

° In a Coronal Plane , a body is divided into Dorsal and ventral part giving rise to a LATERAL VIEW.

The bending of a spine decrease the angle of the bone, as such, LATERAL FLEXION takes place.

° ADDUCTION is the movement of a bone to the midline of the body while the opposite is true for ABDUCTION (i.e movement of a bone away from the midline of the body). A typical example of this can be demonstrated by the lower mandible jaw.

° CIRCUMDUCTION is the conical(because the circular movement forms a cone) movement of a limb extending from the joint at which the movement is controlled.

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.  

for example:  

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer.   you start to feel bad.