CH. 2 Anatomy & Physiology Flashcards
The basic unit of all living things, including bacteria, plants, & animals.
Responsible for carrying out all life processes.
Cells.
Made of protoplasm, a colorless, jelly-like substance in which protein, fats, carbohydrates, mineral salts, & water are present.
Cells.
Dense, active protoplasm found in the center.
Plays an important part in cell reproduction.
Contained in a nuclear membrane within the nucleus is the nucleoplasm, which is a fluid that contains proteins, & a very important acid known as deoxyribonucleic acid or DNA.
Nucleus.
The material or protoplasm within a living cell except the nucleus.
Cytoplasm.
Encloses the protoplasm & permits water-soluble substances to enter & leave the cell.
Cell membrane.
Small structures or miniature organs within a cell that have their own function.
Organelle.
Most cells reproduce by dividing into two identical cells called daughter cells.
This process is known as…
Mitosis.
Adequate supply of food.
Adequate supply of oxygen.
Adequate supply of water.
Elimination of waste.
Suitable temperatures.
Requirements for cell growth.
Complex chemical process whereby the body cells are nourished & supplied energy needed to survive.
Cell metabolism.
Process of building up larger molecules from smaller ones.
Body stores water, food, & oxygen for when they are needed for growth & repair.
Anabolism.
Phase of breaking down larger substances or molecules into smaller ones.
Releases energy that can be stored & used for muscle contraction, secretion, or producing heat.
Catabolism.
What are the two phases of metabolism?
Anabolism & Catabolism.
How many types of tissues are there?
4
Serves to support, protect, & bind together tissues of the body.
Ex: bone, cartilage, ligaments, tendons, fascia, & adipose tissue (fat.)
Connective tissue.
Gives smoothness & contour to the body.
Adipose tissue.
Protective covering on the body’s surface, such as skin mucous membranes, lining of the heart, digestive & respiratory organs, & glands.
Epithelial tissue.
Contracts & moves various parts of the body.
Muscular tissue.
Carries messages to & from the brain & coordinates all body functions.
Nerve tissue.
Groups of tissues designed to perform a specific function.
Organs.
Groups of organs acting together to perform one or more functions.
Body systems.
Rigid network composed of 206 bones that vary in size & shape & are connected by moveable & immovable joints.
Skeletal system.
Give shape & support the body.
Protect various internal structures & organs.
Serve as attachments for muscles & act as levers to produce body movement.
Help produce both white & red blood cells. (one of the functions of bone marrow)
Store most of the body’s calcium supply as well as phosphorus, magnesium, & sodium.
Primary functions of the skeletal system.
Elbows, knees, & hips are…
Moveable joints.
Pelvis, & skull are…
Immovable joints.
Formed by 8 bones.
The cranium.
Consists of 14 bones.
The face.
How many bones does the human head contain?
22 bones.
The oval, bony case that shapes the top of the head & protects the brain.
The cranium.
Forms the lower back part of the cranium.
Occipital.
Forms the side & top of the cranium (crown).
Parietal (2)
Forms forehead.
Forntal.
Forms sides of head in ear region.
Temporal (2)
The light, spongy bone between eye sockets & forming part of the nasal cavities.
Ethmoid.
Joins together all the bones of the cranium.
Sphenoid.
Forms bridge of nose.
Nasal (2)
Small, fragile bones located at front part of the inner wall of eye sockets.
Lacrimal (2)
Forms cheeks or cheekbones.
Zygomatic (2)
Bones of upper jaw.
Maxillary (2)
Forms lower jaw bone, this is the largest & strongest bone of the face.
Mandible.
The bones of the neck consist of…
Hyoid bone.
Cervical vertebrae.
‘U’ shaped bone located in the front part of the throat just on top the Adam’s apple.
Hyoid bone.
Forms the top of the spinal column located in the neck region.
Cervical vertebrae.
The bones of the chest consist of…
Thorax.
Sternum.
An elastic, bony cage that serves as a protective framework for the heart, lungs, & other delicate internal organs.
Thorax.
Breastbone.
Sternum.
The shoulder consists of…
Clavicle.
Scapula.
Clavivle.
Collarbone.
Scapula.
Shoulder blade.
Uppermost & largest bone of the arm.
Humerus.
Large bone on little finger side of forearm.
Ulna.
Small bone on the thumb side of forearm.
Radius.