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Exam (elaborations)

Anatomy Practice Exam with Answers – 80+ MCQs | Muscular System, Sensory Organs & Physiology

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Comprehensive Anatomy practice exam featuring 80+ multiple-choice questions (MCQs) with answers included, designed for effective exam preparation. This document covers key topics such as: Muscular system (structure, contraction, sarcomere) Smooth, skeletal and cardiac muscle Sensory systems (vision, hearing, mechanoreceptors) Nervous system basics Physiology of movement and coordination Includes true/false and multiple-choice questions, making it ideal for self-assessment and revision. Perfect for: Medical students Nursing students Biology and health sciences Clear, structured, and exam-focused material to boost performance.

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, 1- El tejido muscular estriado se caracteriza por, excepto:
a.​ Poseer en su estructura a las sarcómeras
b.​ Estar presentes en los músculos que se ancian a los huesos
c.​ Tener forma ahusada
d.​ Núcleos con posiciones periféricos
2- Un músculo con función agonista para un movimiento puede actuar para otro movimiento
como músculo antagonista:
a.​ Verdadero
b.​ Falso
3- La contracción muscular ocurre cuando los filamentos de actina y miosina se deslizan unos
sobre otros:
a.​ Verdadero
b.​ Falso
4- El neurotransmisor que se une al ligando del sarcolema y produce la apertura de canales es
la ………. y los canales son:
a.​ Glutamato - Bomba Na/K
b.​ Acetilcolina - Canales de sodio y calcio
c.​ Glutamato - Canales calcio y potasio
d.​ Acetilcolina - Canales sodio y potasio
5- Encontramos las unidades contráctiles básicas en, excepto:
a.​ Fibra muscular
b.​ Miocardio
c.​ Célula muscular esquelética
d.​ Célula lisa
6- El tipo de tejido muscular más abundante en el cuerpo humano es:
a.​ Músculo visceral
b.​ Miocardio
c.​ Músculo esquelético
d.​ Músculo liso
7- No tienen filamentos de miosina y actina las:
a.​ Fibras musculares
b.​ Células lisas
c.​ Miocardio
d.​ Todas son correctas
e.​ Ninguna es correcta
8- Con respecto al tejido muscular liso, excepto.
a.​ Se contraen en respuesta a un aumento de la concentración de iones calcio
b.​ Utilizan ATP en la contracción
c.​ Su contracción tiende a ser breve
d.​ Se acorta mucho más que el estriado
e.​ Se contrae con lentitud
9- Los músculos en los vertebrados actúan entre si de manera:
a.​ Agonista
b.​ Antagonista

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April 10, 2026
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