Histology Epithelial & Connective
Lines or covers surfaces, ducts, and glands:
Epithelial tissue
This structure is defined as the basic contractile unit of a muscle fiber
Sacromere
This technique provides colorful images and allows for a resolvable distance of 0.2 µm between points.
Light microscopy
This measure of central tendency is the most frequent value in the data set and is not affected by outliers
Mode
This special movement of the forearm occurs when the radius and ulna are rotated so that the palm faces anteriorly
Supination
A biopsy of a lesion shows separation of the basal epithelial cells from the underlying basement membrane. Disruption of which of the following junctional complexes best explains this patient’s findings?
Hemidesmosomes
This term describes the clumps of rough ER found in the cell bodies and dendrites of neurons used for protein synthesis
Nissl bodies
This human cell is a notable exception to the rule that all cells contain at least one nucleus
RBCs
The hyaline cartilage that connects the ribs to the sternum is known as
Costal cartilage
Because it is shorter, wider, and more vertical, this specific structure is the most common site for foreign body aspiration
Right bronchus
Found in the trachea, this tissue appears to be multilayered but is actually a single layer of cells with differing heights
Pseudostratified columnar epithelium
These gaps in the myelin sheath contain high concentrations of sodium channels to enable saltatory conduction
Nodes of Ranvier
The process of engulfing large particles or microorganisms into vesicles is known by this term
Phagocytosis
These tests are used when the outcome data are purely nominal or categorical, assessing whether two variables are independent by comparing proportions or raw number
Chi-square
Known as the heart's pacemaker, this region of specialized muscle cells is located in the upper back wall of the right atrium
These cells are connected by specialized junctions that allow ions and small signaling molecules to pass directly between adjacent cytoplasms, enabling synchronized responses to stimulation. Which of the following junctional complexes is responsible for this communication, and which other type of junction does it most closely resemble under transmission electron microscopy?
DAILY DOUBLE!!!!
Gap junctions, resemble tight junctions
These epithelial-like glial cells feature cilia and microvilli to help circulate and regulate cerebrospinal fluid
Ependymal cells
A pale-staining nucleus with a prominent nucleolus is a histological indicator of a high level of this cellular activity
Protein synthesis
This vein receives nutrient-rich deoxygenated blood from the gastrointestinal tract, gallbladder, pancreas, and spleen before draining into the liver
Hepatic portal vein
According to this anatomical principle, a nerve that supplies muscles acting across a joint is also responsible for providing sensory fibers to that same joint
Hilton's law
This connective tissue classification features parallel rows of fibers and provides high unidirectional stress resistance in tendons and ligaments
Dense regular CT
Muscle growth, or hypertrophy, occurs through the accumulation of these two proteins within individual fibers rather than an increase in the number of cells
DAILY DOUBLE!!!
These structures form when debris cannot be degraded or exocytosed, leading to the accumulation of lipofuscin pigment
Residual bodies
This mesodermal structure serves as the basis for the axial skeleton and induces the formation of the neural plate
Notochord
Permanent images in the skin are possible because ink is injected into the dermis rather than the epidermis, where it remains visible primarily because it is trapped within these specific white blood cells
Macrophages