Muscle
This layer of delicate reticular connective tissue directly envelops individual muscle fibers, sitting external to the sarcolemma and internal to the perimysium.
What is the endomysium?
Found lining the ducts of sweat glands and larger excretory ducts of salivary glands, this relatively rare stratified tissue typically consists of precisely two layers of cells.
What is stratified cuboidal epithelium?
This spindle-shaped cell with an elongated nucleus is the principal resident cell type of connective tissue proper, responsible for synthesizing collagen, elastin, and ground substance.
What is a fibroblast?
This pattern occurs when a single primary localized mechanical or structural defect triggers a predictable cascade of secondary and tertiary downstream anomalies.
What is a sequence?
This principle of radiology states that one should maximize distance and shielding from ionizing radiation, and should limit the time they are exposed.
What is ALARA?
Situated between the sarcolemma and basal lamina of mature skeletal myofibers, these quiescent stem cells proliferate and fuse to repair damaged muscle.
What are satellite cells?
Characterized by dome-shaped or "umbrella" surface cells that flatten under luminal distension, this specialized epithelium lines the renal calyces, ureters, and urinary bladder.
What are transitional cells?
Autosomal dominant mutations in the FBN1 gene cause this syndrome, leading to aortic root dilation, ectopia lentis, and long, slender limbs.
What is Marfan Syndrome?
This % of human children born in the US have birth defects.
What is 3%?
Supplementation with this nutrient may decrease the incidence of myelomeningocele by up to 70%
What is folate?
The transverse components of intercalated discs provide strong mechanical adhesion during forceful contraction primarily using fascia adherens and these button-like junctions.
What are desmosomes?
The classic respiratory epithelium lining the trachea and primary bronchi pairs pseudostratified columnar architecture with motile cilia and these unicellular mucin-secreting glands.
What are goblet cells?
Composed of three alpha-1 chains encoded by the COL7A1 gene, this specific non-fibrillar collagen forms anchoring fibrils that tether the lamina densa of the basement membrane to underlying dermal reticular plaques; mutations in it cause dystrophic epidermolysis bullosa.
What is Type VII Collagen?
Characterized by tethered cord spinal lipoma, this is caused by premature disjunction of the neural tube from the surface ectoderm during development
What is lipomyelomeningocele?
This value represents the radiation exposure equivalent of a singular lung cancer screening CT
What is 1.5 mSv?
Located in the subendocardial layer, these specialized, glycogen-rich conductive myocytes stain pale on H&E and are significantly larger than surrounding contractile cardiomyocytes.
What are purkinje fibers?
In this destructive mode of exocrine secretion seen in sebaceous glands and Meibomian glands, the entire cell disintegrates and releases its lipid contents as sebum into the duct.
What is halocrine secretion?
These large, heterotrimeric cross-shaped glycoproteins contain binding sites for integrins, dystroglycan, and heparan sulfate proteoglycans, initiating the primary scaffold assembly of the basal lamina.
What are laminins?
Amniotic band syndrome, which causes limb amputations and digital ring constrictions by physically shearing previously normal tissues, represents this destructive defect category.
What is a disruption?
This complication of myelomeningocele happens when the hindbrain herniates through the foramen magnum.
What is Chiari II Malformation?
Smooth muscle lacks the troponin complex found in striated muscle; instead, calcium binds to this regulatory protein to activate myosin light-chain kinase.
What is calmodulin?
Celiac disease causes blunting and atrophy of these finger-like projections of the small intestinal mucosa, leading to severe malabsorption.
What are microvilli?
Clue: Synthesized by plasma cells, this immunoglobulin isotype binds with high affinity to Fc receptors on the surface of tissue mast cells and circulating basophils, triggering immediate degranulation and histamine release upon antigen cross-linking.
What is IgE?
Along with kidney failure, this condition used to be responsible for the deaths of most children born with myelomeningocele before better management techniques were developed.
What is hydrocephalus?
The hydroxylation of proline residues, a key step in collagen synthesis, requires this cofactor.
What is Vitamin C?