Lab Practical 1 Flashcards
What is the function of the integumentary system?
Protection, water retention, heat regulation, vitamin D synthesis
What are the organs of the integumentary system?
Skin, hair, nails, and cutaneous glands
What is the function of the skeletal system?
Support, movement, blood formation, mineral storage
What are the organs of the skeletal system?
Bones, cartilage, and ligaments
What is the function of the muscular system?
Movement, stability, communication, heat generation, controls body openings
What are the organs of the muscular system?
Skeletal muscle
What is the function of the lymphatic system?
Recover excess tissue fluid, detect pathogens, produce immune cells, fight against disease
What are the organs of the lymphatic system?
Lymph nodes, lymphatic vessels, thymus, spleen, tonsils
What is the function of the respiratory system?
Absorb oxygen, discharge carbon dioxide, acid-base balance, speech
What are the organs of the respiratory system?
Nose, pharynx, larynx, trachea, bronchi, lungs
What is the function of the urinary system?
Eliminate wastes, regulate blood volume and pressure, detoxify blood, control fluids, stimulate RBC formation
What are the organs of the urinary system?
Kidneys, ureters, urinary bladder, urethra
What is the function of the nervous system?
Internal communication, coordination, motor control, and sensation
What are the organs of the nervous system?
Brain, spinal cord, nerves, ganglia
What is the function of the endocrine system?
Hormone production, internal chemical coordination and communication
What are the organs of the endocrine system?
Pituitary gland, pineal gland, thyroid gland, parathyroid glands, thymus, adrenal glands, pancreas, testes, ovaries
What is the function of the circulatory/pulmonary system?
Distribute nutrients, oxygen, hormones, electrolytes, heat, immune cells, and antibodies
What are the organs of the circulatory/pulmonary system?
Heart, blood vessels
What is the function of the digestive system?
Nutrient breakdown and absorption, metabolize carbs, lipids, proteins, vitamins, and minerals
What are the organs of the digestive system?
Teeth, tongue, salivary glands, esophagus, stomach, small and large intestines, liver, gallbladder, pancreas
What are the organs of the female reproductive system?
Ovaries, uterine tubes, uterus, vagina, mammary glands
What is the function of the female reproductive system?
Produce eggs, fertilize and develop fetuses, nourish fetus, birth, lactate, secrete sex hormones
What are the organs of the male reproductive system?
Testes, epididymides, spermatic ducts, seminal vesicles, prostate, bulbourethral glands, and penis
What are the functions of the male reproductive system?
Produce and deliver sperm, secrete sex hormones
What is anatomical position?
Standing upright with the feet flat on the floor, arms at the sides, and the palms and face directed forward.
What does ventral/anterior mean?
Towards the front
What does dorsal/posterior mean?
Towards the back
What does cephalic mean?
Towards the head/superior end
What does rostral mean?
Towards the forehead or nose
What does caudal mean?
Towards the tail or caudal end
What does superior mean?
Above
What does inferior mean?
Below
What does medial mean?
Towards the median plane
What does lateral mean?
Away from the median plane
What does proximal mean?
Closer to the point of attachment/origin
What does distal mean?
Farther from the point of attachment/origin
What does ipsilateral mean?
On the same side of the body (left or right)
What does contralateral mean?
On opposite sides of the body (left or right)
What does superficial mean?
Closer to the body surface
What does deep mean?
Farther from the body surface
What is a coronal/frontal plane?
Front and back
What is a transverse plane?
Top and bottom
What is a sagittal plane?
Left and right
What are the 4 main body cavities?
Cranial, vertebral, thoracic, and abdominopelvic
What are the divisions of the thoracic cavity?
Pleural cavities (2) and pericardial
What are the divisions of the abdominopelvic cavity?
Abdominal and pelvic
Viscera of the cranial cavity?
Brain
Viscera of the vertebral cavity?
Spinal cord
Viscera of the pleural cavities?
Lungs
Viscera of the pericardial cavity?
Heart
Viscera of the abdominal cavity?
Digestive organs, spleen, kidneys
Viscera of the pelvic cavity?
Bladder, rectum, reproductive organs
Membranous lining of the cranial cavity?
Meninges
Membranous lining of the vertebral cavity?
Meninges
Membranous lining of the pleural cavities?
Pleurae
Membranous lining of the pericardial cavity?
Pericardium
Membranous lining of the abdominal cavity?
Peritoneum
Membranous lining of the pelvic cavity?
Peritoneum
Scientific name for the head region?
Cephalic
Scientific name for the face region?
Facial
Scientific name for the neck region?
Cervical
Scientific name for the chest region?
Thoracic
Scientific name for the middle of chest region?
Sternal
Scientific name for the pectoral region?
Pectoral
Scientific name for the bellybutton region?
Umbilical
Scientific name for the stomach region?
Abdominal
Scientific name for the groin region?
Inguinal
Scientific name for the pubic region?
Mons pubis
Scientific name for the thigh region?
Femoral
Scientific name for the calf region?
Crural
Scientific name for the ankle region?
Tarsal
Scientific name for the foot region?
Pedal/dorsum
Scientific name for the foot sole region?
Plantar surface
Scientific name for the shoulder region?
Acromial
Scientific name for the armpit region?
Axillary
Scientific name for the upper arm region?
Brachial
Scientific name for the elbow region?
Cubital
Scientific name for the forearm region?
Antebrachial
Scientific name for the wrist region?
Carpal
Scientific name for the hand palm region?
Palmar
Scientific name for the hip region?
Coxal
Scientific name for the knee region?
Patellar
Scientific name for the back of neck region?
Nuchal
Scientific name for the region between shoulder blades?
Interscapular
Scientific name for the shoulderblade region?
Scapular
Scientific name for the vertebral region?
Vertebral
Scientific name for the back region?
Lumbar
Scientific name for the small of back region?
Sacral
Scientific name for the butt region?
Gluteal
Scientific name for the back of hand?
Dorsum of hand
Scientific name for the buttcrack region?
Perineal
Scientific name for the back of knee region?
Popliteal
Scientific name for the foot heel region?
Calcaneal
What are the 4 body quadrants?
Right upper quadrant, right lower quadrant, left upper quadrant, left lower quadrant (directions according to being the person)
Organs in the right upper quadrant include…
Liver, gallbladder, duodenum, and part of the pancreas and colon
Organs in the right lower quadrant include…
Appendix, right ovary, right fallopian tube, and part of the colon
Organs in the left upper quadrant include…
Stomach, spleen, adrenal gland, parts of the liver, pancreas, kidney, and colon
Organs in the left lower quadrant include…
Left ovary, left fallopian tube, sigmoid colon, part of the colon
What are the top 3 abdominal regions?
Right hypochondriac, epigastric region, left hypochondriac
What are the middle 3 abdominal regions?
Right lumbar, umbilical, left lumbar
What are the bottom 3 abdominal regions?
Right iliac, hypogastric, left iliac
Organs of the right hypochondriac region?
Liver, gallbladder, right kidney, some small intestine
Organs of the left hypochondriac region?
Spleen, some colon, left kidney, some pancreas
Organs of the epigastric region?
Stomach, liver, pancreas, duodenum, spleen, adrenal glands
Organs of the right lumbar region?
Gallbladder, liver, right colon
Organs of the left lumbar region?
Descending colon, left kidney
Organs of the umbilical region?
Umbilicus, jejunum, ileum, duodenum
Organs of the right iliac region?
Appendix, cecum
Organs of the left iliac region?
Descending colon, sigmoid colon
Organs of the hypogastric region?
Urinary bladder, sigmoid colon, female reproductive organs
What is the ocular lens?
Part you look at that magnifies x10
What is the body tube?
The tube the eyepiece is connected to to hold it in place
What is the revolving nosepiece?
What you twist to get different magnification lenses
What is the objective lens?
The magnification lens. Captures and refracts light to magnify object
What is the arm of a microscope?
You pick up the microscope by it
What is the mechanical stage?
Holds the slide and moves it around
What is the coarse-focus knob?
Large knob that gets focused roughly
What is the fine-focus knob?
A smaller knob that focuses more precisely
What is the condenser?
Located right beneath the stage, it focuses light onto the specimen
What is the iris diaphragm lever?
Under the condenser, it regulates the amount of the light going through the condenser
What is the light source on a microscope?
Illuminates the subject
What is the base of a microscope?
The bottom, holds things in place and you can use it to move the microscope
What is the stage clip?
Holds the slide in place
What are the x and y-axis control knobs?
They move the stage upon either axis
What are the powers of the objective lenses?
4x, 10x, 40x, 100x
How much does the eyepiece alone magnify?
10x
What is field of view?
Maximum area visible
What is depth of field?
The depth of the object space that is simultaneously in acceptable focus
How do you calculate total magnification?
The eyepiece (always 10x) times the objective lens power
What is a microvillus and what does it do?
Little protrusions on the membrane that increase membrane surface area so things can be absorbed better
What are microfilaments and what do they do?
Inside microvilli. Form terminal web
What are secretory vesicles and what do they do?
Round thing that approaches cell membrane to form a fusion pore and secrete (exocytosis) whatever it was carrying
What are Golgi complexes and what do they do?
System of tunnels that synthesize carbs and put finishing touches on protein synthesis. Packages proteins into Golgi vesicles for delivery
What are intermediate filaments and what do they do?
Fibers found throughout the cytoplasm that give the cell shape and resist stress
What are lysosomes and what do they do?
Lysosomes are usually-round packages of enzymes that break down materials that’s old or no longer needed
What are microtubules and what do they do?
Fibers radiating from the centrosome which maintain cell shape, act as railroad tracks, make axonemes for cilia and flagella, and form mitotic spindle
What is the rough ER and what does it do?
System of channels enclosed by a membrane, studded w/ ribosomes. Produces phospholipids and proteins for plasma membrane and synthesizes proteins
What is the smooth ER and what does it do?
System of channels enclosed by a membrane, NO ribosomes. Synthesizes steroids and other lipids, stores calcium, detoxifies drugs
What is the plasma membrane and what does it do?
Border of the cell. Holds everything in and controls what gets in and out
What is the intracellular space and what does it do?
The space inside the plasma membrane. It has to stay balanced for the cell to be healthy
What is the centrosome and what does it do?
A small clear area near the nucleus containing a pair of centrioles. It duplicates and moves to opposite ends of the cell for division
What are centrioles and what do they do?
Short cylindrical bodies made of 9 triplets of microtubules. They form basal bodies of cilia and flagella and form mitotic spindle during cell division
What are ribosomes and what do they do?
Small granules of protein and RNA found throughout the cell and on rough ER that read genetic messages and assemble amino acids into specified proteins
What is the nucleus and what does it do?
Large organelle surrounded by a porous membrane which directs protein synthesis and shelters DNA
What is the nucleolus and what does it do?
Large structure inside nucleus which synthesizes ribosomes
What is the nuclear envelope and what does it do?
Double membrane around nucleus that protects it and has pores to regulate molecular traffic
What are mitochondria and what do they do?
Oval shaped organelles with cristae matrix specialized for synthesizing ATP
What are 7 components of the plasma membrane?
Glycolipids, glycoproteins, channel proteins, cholesterol, phospholipid bilayer, ICF and ECF
How do glycolipids look?
Chains attached to lipids of the bilayer that are on the outside of the membrane
How do glycoproteins look?
Chains attached to proteins on the membrane
How does cholesterol look?
Chains inside the phospholipid bilayer among the tails
How does the phospholipid bilayer look?
Molecules arranged in layers so hydrophilic heads are on outside and hydrophobic tails are inside
How does ICF look?
Fluid inside cell membrane
How does ECF look?
Fluid outside of cell membrane
What are the phases of interphase?
G1, S, and G2
What happens during interphase?
Cells grow, replicate their chromosomes, and prepare for cell division
What happens during mitosis?
The cell replicates its nucleus and forms 2 daughter cells
What happens during cytokinesis?
The cytoplasm is divided into the 2 cells
How do kinetochores look?
Little bumps on the side of chromosome, near centrosome
How do centrosomes look?
Center of chromosome
How do sister chromatids look?
Legs of chromosome
Way to remember steps of mitosis?
PPMAT C
How does prophase look?
The cell is fairly normal, the nucleus is intact with chromosomes inside
How does prometaphase look?
Spindle poles develop and the nuclear envelope dissipates, leaving chromosomes scattered around
How does metaphase look?
Chromosomes line up in the middle of the cell. Poles are still present
How does anaphase look?
Chromatids start being separated from each other
How does telophase look?
The chromatids are entirely separate and very close to the poles, which are also far away from each other
How does cytokinesis look?
The nuclear envelope is reformed, with chromosomes inside, and the cell begins to separate into 2 different cells
What happens during mitosis?
Cells divide their duplicated DNA (from interphase) and cytoplasm to form 2 new cells
Role of plasma membrane and its’ embedded proteins?
The membrane provides protection and holds everything inside, stopping unwanted things from getting in. The embedded proteins are there to selectively transport molecules and recognize other cells around it.
Lactose enzyme lab summary
Lactose is the sugar found in milk, composed of glucose and galactose. Lactase is the enzyme that is specific to lactose, and breaks lactose down into glucose and galactose. People who are lactose intolerant lack the lactase enzyme and their bodies cannot break down the sugar into its monosaccharides. What we found in the experiment was that lactase cannot break down any other sugars than lactose, and the lactase must be intact and not denatured in order to work. When the milk (containing lactose) and lactase (still intact) meet, the lactose will break down into glucose and galactose.