Human Bio Test 3 Flashcards
Dura mater?
Outer layer
3 layers of the meningis?
- Dura mater
- Arachnoid mater
- Pia mater
Arachnoid mater?
Middle layer
Pia mater?
Inner layer
Mitosis?
- A formation of two identical daughter cells
- A sexual reproduction
- Function in tissues repair growth and development
Meiosis?
A formation of four daughter cells that are not identical to each other
Interphase?
- Not a stage of mitosis
- Chromosomes duplicate
- Resting stage
Prophase?
Nucleolus and nuclear membrane disappear
Metaphase?
Chromosomes lined up in the center of the cell
Anaphase?
Chromosomes move to opposite poles of the cell
Telophase?
- Final stage of mitosis
- Formation of two identical daughter cells
- Cytokinesis
Cytokinesis?
Division of cytoplasm
Testis?
Produces sperm
Scrotum?
Sac that holds the testes
Epididymis?
Where sperm is matured and stored
Vas Deferens?
Transports sperm to the urethra
Penis glans?
Sensitive tip of the penis
Vagina?
- Birth canal
- Copulatory organ of a female
Uterus?
Normal site of fetal development
Cervix?
- Opening to the uterus
- Dilates during childbirth
Clitoris?
- Erectile organ
- site of intense sexual feeling
Ovary?
Produces eggs
Oviducts?
Moves eggs and normal site of fertilization
Seminal vesicles?
Produce a sugary fluid that provide energy for the sperm
Prostate gland?
Produces an alkaline fluid to help buffer pH in the vagina
Labia major?
2 large folds of fatty skin
Labia minor?
2 small folds just inside the labia major that contain the opening to the urethra and vagina
3 stds that can be cured with antibiotics?
- Chlamydia
- Gonorrhea
- Syphillis
What are stds?
Sexual transmitted diseases
How to protects ourselves against stds?
- Use condoms
- Abstinence
- Long term monogamous relationships
- Avoid anal intercourse
Symptoms for viral stds?
- Warts and flat lesions
2. Ulcers
Hypothalamus?
Regulates internal environment through the autonomic nervous system
-helps control heartbeat, body temperature, water balance and glandular secretions
Anterior pituitary gland?
- Thyroid stimulating hormone TSH
- Adrenocorticotropic hormone ACTH
- Gonadotropin hormone
- Prolactin PRL
- Melanocyte stimulating hormone MSH
- Growth hormone GH
Thyroid stimulating hormone? TSH
-Anterior pituitary gland
Central nervous system?
CNS brain and spinal cord
Peripheral nervous system?
PNS nerves and ganglia
Cell bodies
Nervous system?
Allows for communication between cells through sensory input, integration of data, and motor output
What are two types of cell types?
- Neurons
2. Neuralgia
Dendrites?
Carries info towards the cells body
Cell body?
Main cell where organelles and nuclei reside
Axon?
Single long extension that carries impulses away from the cell body
Myelin sheath?
Fatty insulating layer
Functions of myelin sheath?
Speeds up transmission impulses and repairs damaged neurons
Adrenocorticotropic hormone?
- Anterior pituitary gland
- ACTH
- Release control and stress info
Gonadotropic hormones?
Stimulate gonads to produce sex cells and gametes
Prolactin?
- PRL
- Anterior pituitary gland
- Stimulates mammary glands to develop and produce milk only after childbirth
Melanocyte stimulating hormone?
- MSH
- Anterior pituitary gland
- causes skin cells to produce melanin
Growth hormone?
- GH
- Promotes skeletal and muscular growth
Posterior pituitary gland?
Stores anti diuretic hormone and oxycotin that are produced by the hypothalamus
Antidiuretic hormone?
- ADH
- Posterior pituitary gland
- Regulates water balance by re absorbing water into the bloodstream
Oxytocin?
- Posterior pituitary gland
- Causes uterine contractions during childbirth and allows milk to be released during nursing
Pituitary dwarfism?
Too little GH is produced during childhood that results in small stature
Giantism?
Too much GH is produced during childhood that results in poor health
Acromegaly?
Overproduction of GH as an adult that results in larger than normal feet, hands, and face
Thyroid glands?
Iodine is needed in the diet to allow the thyroid gland to produce its hormones, it’s produces thyroid hormone and calcitonin
Thyroid hormone?
- TH
- Regulates metabolism
Calcitonin?
- Thyroid gland
- Lowers blood calcium levels by having calcium in the bones
Parathyroid gland?
- Produces parathyroid hormone
- Small glands embedded in the surface of the thyroid gland
Parathyroid hormone?
- PTH
- Parathyroid gland
- Raises blood calcium levels
Adrenal glands?
- Glands that sit on top of the kidneys
- Adrenal medulla and cortex
Adrenal medulla?
- Secretes epinephrine and norepinephrine
- Hypothalamus initiates stimulation of hormone secretion in the adrenal medulla
Prophase 1?
Synapsis and crossing over occurs
Telophase 1?
Formation of 2 sister chromatids
Metaphase 1?
Centromeres of homologous chromosomes lined up in the center of the cell
Anaphase 1?
Centromere of homologous chromosomes each made up of 2 sister chromatids move to opposite poles of the cell
Telophase 2?
Formed 4 sister chromatids
Prophase 2?
DNA is not replicated, no pairing of homologous chromosomes
Anaphase 2?
Chromosomes moves to opposite poles of the cell
Metaphase 2?
Chromosomes lines up in the center of the cell
Which cranial nerve is called the dentist nerve?
Trigeminal
The portion of the neuron that conducts information away from the cell body?
Axon
Cranial nerve responsible for balance and hearing?
Vestibulocochlear
Cranial nerve innervates tongue muscles?
Hypoglossal
Cranial nerve innervates smell?
Olfactory
Temporal lobe?
Hearing
Parietal lobe?
Taste
Occipital lobe?
Visual
Frontal lobe?
Speech
Cerebrum?
Telencephalon
Thalamus & hypothalamus?
Diencephalon
Cerebellum?
Helps maintain posture, balance and coordination
Pons?
Bridge that connects various parts of the brain
Midbrain?
Shortest part of the brain stem
Medulla oblogata?
Regulates heart rate, blood pressure and reflex actions such as coughing
Gray matter?
H shape contains cell bodies and nonmyelinated fiber
White matter?
Contains myelinated axons and dendrites
Central canal?
Found in the center of the spinal cord, contains cerebrospinal fluid
Spinal cord?
Communication between brain and body. Acts as a reflex center
Somatic?
Serves skin skeletal, voluntary and muscle tendons
Automatic?
Involuntary cardiac and smooth muscle tissues, responses are reflexes
Sympathetic?
Fight or flight, high heart rate and high blood pressure and high breathing
Parasympathetic?
Normal rest and digest
Neuron?
Specialized cells for communication
Neuroglia?
Provides physical support and nourishment to neurons
- Olfactory?
Smell
- Optic?
Inner layer of eye, photo receptors
- Oculomotor?
Eye movement
- Trachilear?
Eye movements up, down, right, left
- Trigeminal?
Dentist nerve
- Abducens?
Eye movement
- Facial?
Facial expressions
- Vestibulocochlear?
Lower and upper ear, hearing
- Glossopharyngeal?
Coughing and swallowing
- Vagus?
Coughing and swallowing
- Spinal accessory?
Movement of head and shoulders
- Hypoglossal?
Movement of tongue
Adrenal glands?
Sits on tops of your kidneys , secrete medulla and cortex
Adrenal medulla?
Secretes epinephrine and norepinephrine
Adrenal cortex?
Secretes mineralcorticoids which regulates water and salt balance. And it secretes glucocorticoids that digests fats, carbs, and proteins
Pancreas?
Secretes insulin which lowers blood sugar and secretes glucagon which raises blood sugar
Thymus glands?
Secretes thymosine which fights infection
Pineal gland?
Secrets melatonin