AP Lab Quiz 1 Flashcards
Superior
Up
Inferior
Down
Anterior
Front
Posterior
Back
Medial
Towards the midline
Lateral
Away from the midline
Proximal
Towards the point of attachment
Distal
Away from the point of attachment
Diaphragm
Divides the thoracic and abdominal cavity
Visceral
The layer touching the organ
What type of microscope do we use in class?
Compound microscope
The image we see in the microscope is…
Upside down and backwards
Two top lenses of the microscope and their magnification
Ocular lenses, 10x magnification
The bottom three lenses
Scanning 4x, low power 10x, and high power 40-45x
Total magnification
Multiple ocular lense by the objective lense
As we increase magnification, the field of view gets
Smaller
Parfocal
As you go from lower to higher magnification, the microscope stays in focus
Nucleus
Contains DNA
Nucleolus
inside the nucleus and produces ribosomes
Ribosomes
Synthesises proteins
Rough ER
Synthesises proteins, surrounded by ribosomes
Smooth ER
Synthesises lipids
Lipids
A source of energy, provides protection by surrounding organs
Three sources of energy
Carbs, lipids, protein
Golgi apparatus
Makes carbs and packages carbs, lipids, and proteins into little vesicles and ships them out to different parts of the body as needed
Lysosome
Breaks down cellular waste
Mitochondria
Provides energy in the form of ATP
Centrioles
Cell division
Four types of tissue
Epithelial, connective, muscle and nervous tissue
Simple squamous
Lines blood vessels
Stratified squamous
Lines the esophagus and some reproductive organs like the vagina
Simple cuboidal
Lines kidney tubules and liver cells
Stratified cuboidal
Lines the sweat glands
Simple columnar
Found in small and large intestines. Has specialisations such as, brush borders called cilia which help move substances across the cell
Columnar cells have…
Goblet cells which produce mucous that help cilia move substances across the cell
Stratified columnar cells
Rare and can be found in the pancreas and salivary glands
Transitional epithelium
only found in the lining of the bladder and can expand up to 3-4x it’s size
Pseudostratified columnar epithelium
Only 1 layer, located in the trachea, also has goblet cells and cilia
Connective tissue
Has cushioning effect, supports and protects organs, has fibers called collagen, elastic, and reticular fibers
Collagen fibers are …
Proteins, the strongest fiber, gives compact bone it strength, tensile strength
Elastic fibers
Proteins, contain elastin, slight elasticity, found in blood vessels and skin
Reticular fibers
Strong and flexible, form a network for the lymphatic system
Areolar connective tissue
Most common, found beneath skin and muscle
Adipose connective tissue
Found on the walls of our organs, stored as yellow marrow
Reticular connective tissue
Forms network for lymphatic system
Loose connective tissue
Areolar, adipose and reticular
Dense connective tissue
Dense regular, dense irregular, and elastic connective tissue
Dense regular connective tissue
A lot of collagen fibers, makes up tendons and ligaments
Tendons
Connect muscle to bone
Ligaments
Connect bone to bone
Dense irregular connective tissue
Has less collagen and more elastic fibers, found in the dermis
Elastic connective tissue
Found in skin, arteries and structures of developing fetus
Diffusion
Movement of a molecule from a greater concentration to a lower concentration through a semi-permeable membrane
Osmosis
Movement of water from an area of high concentration to low concentration through a semi-permeable membrane
Diffusion and osmosis use …. Energy
Kinetic energy, it’s passive transport
A solution is made up of two parts
Solute and solvent
Solute
Smaller amount
Solvent
Larger amount
RBC in isotonic solution
Has no effect
RBC in hypotonic solution
RBC would expand and lyse. RBC loses salt and gains water.
RBC in hypertonic solution
Loses water, gains salt. Cell crenates.
Mitosis
Division of a cells nuclear material
Largest phase of the cell cycle
Interphase
G1 Phase
Where a cell starts to grow
S Phase
Cell continues growth and begins replication
G2 Phase
Final growth and division before mitosis
Mitosis starts with…
One parent cell and ends with two daughter cells
Stages of mitosis
PMAT
Prophase
Centrioles move to opposite sides of the cell, the nuclear membrane disappears, and the mitotic spindles form between the two pairs of centrioles
Metaphase
Chromosomes in the center align horizontally across the middle of the cell, attach to the mitotic spindles, and form the metaphase plate
Anaphase
Shortest phase of mitosis. The chromosomes that are aligned separate as chromatids and become daughter chromosomes and go to opposite sides of the cell.
Telophase
The center crimps inward and forms the cleavage furrow, the nuclear membrane starts to reform and the mitotic spindles disappear
Cytokinesis
When telophase ends, the cleave furrow continues until the cell is divided into two identical daughter cells
Layers of the skin
Epidermis, dermis, hypodermis
Thick skin
Located on the soles of feet and palms of hands
1st layer of thick skin
Stratum corneum
2nd layer of thick skin
Stratum lucidum (only found in thick skin)
3rd layer of thick skin
Stratum granulosum
4th layer of thick skin
Stratum spinosum
5th layer of thick skin
Stratum basale
Meissner’s corpuscle
Detects light pressure
Sebaceous glands
Secretes oil
Sudoriferous gland
Sweat gland
Arrector pili muscle
contracts to pull on hair
Adipose tissue
Cushioning, energy
Pacinian carpucle
Detects deep pressure
Compact bone
The outside edge where all the strength is
Osteon
around structure, main component of compact bone
Haversian canal
Travels through the center of the osteon
Lamella
Ring of bone around the haversian canal
Collagen fibers (bone)
Overlapping fibers found within the lamella that give compact bone it’s strength
Lacuna
Small cavities between the bone lamella; contains an osteocyte
Canaliculi
Pass through the lamella; provides blood flow; connects one osteocyte with another osteocyte
Volkmans canal
Channels that permit blood flow
Periosteum
Outside of the bone