Lockjaw, characterized by severe difficulty in jaw movement, represents a primary clinical sign of___________?
Show answer Hide answer
Answer: D. Tetanus
Explanation
Lockjaw, characterized by severe muscle spasms in the jaw, is a primary clinical sign of tetanus. Neurotoxins produced by tetanus bacteria disrupt normal nervous control over voluntary skeletal muscles. This painful symptom typically appears early in the progression of a severe clinical tetanus infection. Tetanus is a serious bacterial disease caused by spores entering the body through open skin wounds. The causative bacterium releases tetanospasmin, a potent toxin that attacks the human nervous system. Vaccination programs have dramatically reduced the incidence of tetanus in developed countries worldwide.
Medical professionals administer booster shots after puncture injuries to prevent potential tetanus infections. Emergency room doctors check patient vaccination history whenever deep cuts or animal bites occur. Severe tetanus cases require intensive care hospitalization to manage dangerous muscle spasms and breathing. Cholera is a severe bacterial infection causing watery diarrhea and dehydration rather than muscle lockjaw. Plague is a serious infectious disease transmitted by fleas, known historically for causing painful swollen lymph nodes. Diphtheria primarily affects the mucous membranes of the throat and upper respiratory tract instead of jaw muscles.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Residential natural gas utility bills are computed using which system of measurement units?
Show answer Hide answer
Answer: C. BTU
Residential natural gas utility bills measure thermal energy content using British Thermal Units. The BTU measures the amount of heat energy required to raise water temperature. Gas utility meters calculate energy delive...
Q2. Lignite, bituminous, and anthracite represent varying geological grades or ranks of _________ ?
Show answer Hide answer
Answer: B. Coal
Coal forms from ancient plant material subjected to intense underground geological heat and pressure over millions of years. Geologists classify coal into distinct ranks based on carbon content and moisture levels, rangi...
Q3. Lambert’s law is fundamentally concerned with which physical phenomenon?
Show answer Hide answer
Answer: D. Illumination
Lambert’s law mathematically describes the illumination of flat surfaces. It states that luminous intensity depends on the cosine of the angle. This optical principle governs how light spreads across illuminated areas. J...
Q4. What constitutes the most massive anatomical subdivision of the human brain___________?
Show answer Hide answer
Answer: C. Cerebrum
The cerebrum constitutes the largest and most massive anatomical subdivision of the human brain. It is divided into left and right hemispheres controlling higher-level sensory and motor functions. This massive structure...
Q5. A skeletal articulation where bones are firmly united by dense fibrous connective tissue is designated as _____________ ?
Show answer Hide answer
Answer: A. Fibrous joint
Fibrous joints feature bones connected directly by tough collagen fibers without any intervening joint cavity present. The dense connective tissue holding these skeletal elements together restricts movement, resulting in...
Q6. The liver utilizes which essential vitamin in the synthesis of new Red Blood cells?
Show answer Hide answer
Answer: A. B12
Vitamin B12 plays a critical biochemical role in erythropoiesis processes. The liver stores this vitamin to support continuous red blood cell creation. Deficiency in this nutrient leads directly to megaloblastic anemia c...