Flashcards : Fundamentals of Human Physiology — 24 cartes

Connection between neurons for signal transmission.

Exocytosis of vesicles at presynaptic terminal.

Chemical messengers secreted into blood affecting targets.

Enzymatic defect impairs hormone production, causing disorders.

Thyroid hormones, catecholamines, serotonin.

Transport oxygen in red blood cells.

Biconcave for flexibility and surface area.

Platelet aggregation and coagulation to stop bleeding.

Atrial depolarization before contraction.

Ventricular repolarization after contraction.

Muscle movements generate pressure changes for airflow.

Gas diffusion driven by pressure gradients.

Filtration, reabsorption, secretion, excretion.

Regulates filtration based on NaCl detection.

Water loss exceeds intake, increasing osmolarity.

Electrolyte imbalance, hypovolemia, increased osmolarity.

Hormones regulate ovulation, cycle, and pregnancy.

On Y chromosome, initiates male development.

Stimulates red blood cell production.

End of bronchial tree, site of gas exchange.

Air movement driven by diaphragm and intercostals.

Fick's law: diffusion proportional to surface and pressure difference.

Final elimination of waste substances in urine.

Regulated by nervous and endocrine systems.