MBLEX 2025 ACTUAL TEST QUESTIONS WITH ACCURATE SOLUTIONS – ALREADY
GRADED A+
Nails
protective coverings on the ends of the fingers and toes, made up of keratine
Hair
Regulates temperature
2 Types of Skin glands
sudoriferous and sebaceous
sebaceous glands
In Dermis; oil glands
sudoriferous glands
In Dermis; sweat gland. Helps lower body temp by sweat evaporating off surface of skin
3 skin receptors
Nociceptors, Meissner Corpuscle, Pacinian Corpuscle
,Nociceptors
Detects pain
Meissner's corpuscles
sensory receptors, detects light touch/pressure; superficial to the skin
Pacinian corpuscles
Deep to the skin, detects deep pressure and vibration
Lymphatic system
Defends against pathogens and disease
Lymph
Fluid composed of water, protein, leukocytes, urea, salts; also made up of Interstitial fluid
Lymph vessels
small tubes that carry lymph fluid throughout the body; flows in one direction: towards the
heart.
,Thoracic Duct
Largest lymph vessel, drains into the left subclavian vein
Lymph nodes
Large masses of lymphatic tissue; produce antibodies and filter/destroy foreign objects
Thymus
Produces T cells, which regulates the immune system
Spleen
destroys old red blood cells, pathogens, and debris
Muscular System
Muscles produce heat, contract for movement, and constricts organs/blood vessels
Sarcomeres
Functional unit of a skeletal muscles; made up of 2 protein fillaments: Actin and Myosin
Actin
, Thin filament; part of sarcomere that attaches to Myosin during contraction, anchors to the
Z line
Myosin
Thick Filament; attaches to Actine during contraction; span of thin fillament=A Band
Tropomyosin
Protein that covers myosin/actin to keep them relaxed and from attaching to each other
Contraction
When there is tension in a muscle
Proprioceptors
Structures in the body that help detect its position in space; found in skin, muscles,
tendons, ears (main ones are in muscle spindles and golgi tendon organs)
Muscle layer order
Muscle-Fascicle-Fiber-Myofibril-Sarcomere
Types of muscle contractions
isometric and isotonic (divides to concentric/eccentric)
GRADED A+
Nails
protective coverings on the ends of the fingers and toes, made up of keratine
Hair
Regulates temperature
2 Types of Skin glands
sudoriferous and sebaceous
sebaceous glands
In Dermis; oil glands
sudoriferous glands
In Dermis; sweat gland. Helps lower body temp by sweat evaporating off surface of skin
3 skin receptors
Nociceptors, Meissner Corpuscle, Pacinian Corpuscle
,Nociceptors
Detects pain
Meissner's corpuscles
sensory receptors, detects light touch/pressure; superficial to the skin
Pacinian corpuscles
Deep to the skin, detects deep pressure and vibration
Lymphatic system
Defends against pathogens and disease
Lymph
Fluid composed of water, protein, leukocytes, urea, salts; also made up of Interstitial fluid
Lymph vessels
small tubes that carry lymph fluid throughout the body; flows in one direction: towards the
heart.
,Thoracic Duct
Largest lymph vessel, drains into the left subclavian vein
Lymph nodes
Large masses of lymphatic tissue; produce antibodies and filter/destroy foreign objects
Thymus
Produces T cells, which regulates the immune system
Spleen
destroys old red blood cells, pathogens, and debris
Muscular System
Muscles produce heat, contract for movement, and constricts organs/blood vessels
Sarcomeres
Functional unit of a skeletal muscles; made up of 2 protein fillaments: Actin and Myosin
Actin
, Thin filament; part of sarcomere that attaches to Myosin during contraction, anchors to the
Z line
Myosin
Thick Filament; attaches to Actine during contraction; span of thin fillament=A Band
Tropomyosin
Protein that covers myosin/actin to keep them relaxed and from attaching to each other
Contraction
When there is tension in a muscle
Proprioceptors
Structures in the body that help detect its position in space; found in skin, muscles,
tendons, ears (main ones are in muscle spindles and golgi tendon organs)
Muscle layer order
Muscle-Fascicle-Fiber-Myofibril-Sarcomere
Types of muscle contractions
isometric and isotonic (divides to concentric/eccentric)
