Which Valve Closes When the Left Ventricle Contracts? ​

question 50

Multiple Choice

Which valve closes when the left ventricle contracts? ​

• A)mitral
• B)right AV
• C)tricuspid
• D)pulmonary semilunar
• E)aortic semilunar

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Definitions:

Atomic Orbitals

Mathematical functions describing the location and wave-like behavior of an electron in an atom.

Hybrid Atomic Orbitals

A concept in chemistry where atomic orbitals mix to form new, hybrid orbitals that are used to describe the bonding in molecules.

C-C π Bond

A C-C π bond is a type of covalent bond formed from the sideways overlap of p-orbitals, allowing for electron sharing between carbon atoms in double or triple bonds.

Carbon-Carbon Bonds

The covalent bond between two carbon atoms in a molecule, forming the backbone of organic compounds.