Wirds Beginning With E Flashcards
What are effectors?
Structures that receive signals and execute responses
Effectors play a crucial role in physiological processes.
Define eukaryotic cells.
Cells that have a nucleus and membrane-bound organelles
Eukaryotic cells are typically larger and more complex than prokaryotic cells.
What is the largest membrane in a cell?
The nuclear membrane
The nuclear membrane surrounds the nucleus and controls the passage of materials in and out.
What does the endoplasmic reticulum (ER) do?
Involved in the synthesis and transport of proteins and lipids
The ER can be smooth or rough, depending on the presence of ribosomes.
What is endocytosis?
The process of engulfing particles into the cell
This process allows cells to take in large molecules or particles.
What type of tissue is epithelial tissue?
Tissue that consists of closely packed cells
Epithelial tissue lines surfaces and forms protective barriers.
What do exocrine glands do?
Secrete substances into ducts
Examples include saliva, milk, and sweat.
What is the function of endocrine glands?
Produce hormones that diffuse into the bloodstream
Hormones regulate various physiological processes in the body.
What is extracellular matrix?
A network formed of ground substance and protein fibers
The extracellular matrix provides structural support to surrounding cells.
Define embolism.
Blockage in a blood vessel
An embolism can lead to serious health complications, including stroke.
What is emphysema?
Enlargement of air spaces in the lungs
Emphysema is a chronic lung condition that affects breathing.
What is endothelium?
A thin layer of cells lining blood vessels
Endothelium plays a key role in vascular health and function.
What are enzymes?
Proteins that catalyze biochemical reactions
Enzymes are essential for various metabolic processes.
Fill in the blank: The process of _______ involves the ingestion of substances by a cell.
endocytosis
True or False: Exocrine glands release hormones directly into the bloodstream.
False
Exocrine glands secrete substances into ducts, not into the bloodstream.
