Bio 315 Wsu Lecture Exam 1 Study Questions And Answers 2024

A histologist examines a tissue using a light microscope and notices it contains a numerous amount of cells separated by an extracellular matrix containing numerous protein fibers. What kind of tissue is this? - Connective tissue What is NOT a characteristic of epithelia? - Contains numerous blood capillaries Which of the following structures is/are a part of the axial region of the body? A) legs B) fingers and toes C) arms D) wrists E) Neck - E) neck Which of the following is a dorsal body cavity? A) thoracic cavity B) mediastinum C) abdominal cavity D) pelvic cavity E) vertebral cavity - E) Vertebral cavity Which of the following organs is/are found in a part of the ventral body cavity? A) heart B) liver C) stomach D) urinary bladder E) all of the above - E) all of the above Which statement of the visceral serosa/pleura is FALSE? A) it clings tightly to the outer surface of visceral organs B) it is continuous with the parietal serosa C) it is deep to the parietal serosa D) it separates the internal from the external environment E) it secretes lubricating fluid - D) it separates the internal from the external environment A ____________ plane through the body divides it into anterior and posterior parts - Coronal plane The medical imaging technique that utilizes radioactive isotopes injected into the body to produce the image is called what? - Positron emission tomography (PET scan) The medical imaging technique that utilizes electromagnetic waves to produce a negative image of dense structures is called what? - X-ray The medical imaging technique that takes successive x-rays around a person's full circumference and is viewed in a transverse plane is called what? - Computed axial tomography (CAT scan) The medical imaging technique that utilizes powerful magnets to produce high-quality images of soft tissues is called what? - Magnetic resonance imaging (MRI) The medical imaging technique that utilizes pulses of high-frequency sound waves that echo off the body's tissues to produce an image is called what? - Sonography (ultrasound imaging) This organelle is characterized by folded membranes called cristae A) golgi apparatus B) lysosome C) rough ER D) mitochondria E) peroxisome - D) mitochondria This membranous organelle contains enzymes called acid hydolases that can break down material brought into cells by phagocytosis - lysosome This type of cell junction consists of intracellular protein plaques connected by protein "chains" that span the extracellular space between the membranes of two neighboring cells A) tight junctions B) desmosomes C) gap junctions D) barrier junctions E) loose junctions - B) desmosomes In connective tissue proper, the components of the extracellular matrix are synthesized and secreted by which type of cell? A) endothelial cells B) chondroblasts C) fibroblasts D) osteocytes E) mast cells - C) fibroblasts